TopStudy

Toán · Lớp 5

Bài tập Toán lớp 5 Phép trừ phân số khác mẫu số có đáp án

4 câu · 10 phút · Ngân hàng đề TopStudy. Đáp án và lời giải do TopStudy biên soạn, mở ngay dưới từng câu.

Làm bài

Nội dung đề

Phần I. Tự luận

Câu 1

1 điểm
79−25=\frac{7}{9} - \frac{2}{5} =...58−16=\frac{5}{8} - \frac{1}{6} =...47−211=\frac{4}{7} - \frac{2}{{11}} =...613−15=\frac{6}{{13}} - \frac{1}{5} =...
34−110=\frac{3}{4} - \frac{1}{{10}} =...811−37=\frac{8}{{11}} - \frac{3}{7} =...56−29=\frac{5}{6} - \frac{2}{9} =...45−314=\frac{4}{5} - \frac{3}{{14}} =...
712−213=\frac{7}{{12}} - \frac{2}{{13}} =...67−18=\frac{6}{7} - \frac{1}{8} =...59−14=\frac{5}{9} - \frac{1}{4} =...411−215=\frac{4}{{11}} - \frac{2}{{15}} =...
710−38=\frac{7}{{10}} - \frac{3}{8} =...613−17=\frac{6}{{13}} - \frac{1}{7} =...56−311=\frac{5}{6} - \frac{3}{{11}} =...49−112=\frac{4}{9} - \frac{1}{{12}} =...
78−25=\frac{7}{8} - \frac{2}{5} =...57−310=\frac{5}{7} - \frac{3}{{10}} =...34−19=\frac{3}{4} - \frac{1}{9} =...611−213=\frac{6}{{11}} - \frac{2}{{13}} =...
512−18=\frac{5}{{12}} - \frac{1}{8} =...45−27=\frac{4}{5} - \frac{2}{7} =...79−311=\frac{7}{9} - \frac{3}{{11}} =...67−29=\frac{6}{7} - \frac{2}{9} =...
513−16=\frac{5}{{13}} - \frac{1}{6} =...411−15=\frac{4}{{11}} - \frac{1}{5} =...710−213=\frac{7}{{10}} - \frac{2}{{13}} =...58−314=\frac{5}{8} - \frac{3}{{14}} =...
34−112=\frac{3}{4} - \frac{1}{{12}} =...67−211=\frac{6}{7} - \frac{2}{{11}} =...59−215=\frac{5}{9} - \frac{2}{{15}} =...45−17=\frac{4}{5} - \frac{1}{7} =...
712−310=\frac{7}{{12}} - \frac{3}{{10}} =...613−29=\frac{6}{{13}} - \frac{2}{9} =...58−111=\frac{5}{8} - \frac{1}{{11}} =...47−110=\frac{4}{7} - \frac{1}{{10}} =...
Xem đáp án và lời giải

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

79−25=3545−1845=1745\begin{array}{l}\frac{7}{9} - \frac{2}{5} = \frac{{35}}{{45}} - \frac{{18}}{{45}}\\ = \frac{{17}}{{45}}\end{array}58−16=1524−424=1124\begin{array}{l}\frac{5}{8} - \frac{1}{6} = \frac{{15}}{{24}} - \frac{4}{{24}}\\ = \frac{{11}}{{24}}\end{array}47−211=4477−1477=3077\begin{array}{l}\frac{4}{7} - \frac{2}{{11}} = \frac{{44}}{{77}} - \frac{{14}}{{77}}\\ = \frac{{30}}{{77}}\end{array}613−15=3065−1365=1765\begin{array}{l}\frac{6}{{13}} - \frac{1}{5} = \frac{{30}}{{65}} - \frac{{13}}{{65}}\\ = \frac{{17}}{{65}}\end{array}
34−110=1520−220=1320\begin{array}{l}\frac{3}{4} - \frac{1}{{10}} = \frac{{15}}{{20}} - \frac{2}{{20}}\\ = \frac{{13}}{{20}}\end{array}811−37=5677−3377=2377\begin{array}{l}\frac{8}{{11}} - \frac{3}{7} = \frac{{56}}{{77}} - \frac{{33}}{{77}}\\ = \frac{{23}}{{77}}\end{array}56−29=1518−418=1118\begin{array}{l}\frac{5}{6} - \frac{2}{9} = \frac{{15}}{{18}} - \frac{4}{{18}}\\ = \frac{{11}}{{18}}\end{array}45−314=5670−1570=4170\begin{array}{l}\frac{4}{5} - \frac{3}{{14}} = \frac{{56}}{{70}} - \frac{{15}}{{70}}\\ = \frac{{41}}{{70}}\end{array}
712−213=91156−24156=67156\begin{array}{l}\frac{7}{{12}} - \frac{2}{{13}} = \frac{{91}}{{156}} - \frac{{24}}{{156}}\\ = \frac{{67}}{{156}}\end{array}67−18=4856−756=4156\begin{array}{l}\frac{6}{7} - \frac{1}{8} = \frac{{48}}{{56}} - \frac{7}{{56}}\\ = \frac{{41}}{{56}}\end{array}59−14=2036−936=1136\begin{array}{l}\frac{5}{9} - \frac{1}{4} = \frac{{20}}{{36}} - \frac{9}{{36}}\\ = \frac{{11}}{{36}}\end{array}411−215=60165−22165=38165\begin{array}{l}\frac{4}{{11}} - \frac{2}{{15}} = \frac{{60}}{{165}} - \frac{{22}}{{165}}\\ = \frac{{38}}{{165}}\end{array}
710−38=2840−1540=1340\begin{array}{l}\frac{7}{{10}} - \frac{3}{8} = \frac{{28}}{{40}} - \frac{{15}}{{40}}\\ = \frac{{13}}{{40}}\end{array}613−17=4291−1391=2991\begin{array}{l}\frac{6}{{13}} - \frac{1}{7} = \frac{{42}}{{91}} - \frac{{13}}{{91}}\\ = \frac{{29}}{{91}}\end{array}56−311=5566−1866=3766\begin{array}{l}\frac{5}{6} - \frac{3}{{11}} = \frac{{55}}{{66}} - \frac{{18}}{{66}}\\ = \frac{{37}}{{66}}\end{array}49−112=1636−336=1336\begin{array}{l}\frac{4}{9} - \frac{1}{{12}} = \frac{{16}}{{36}} - \frac{3}{{36}}\\ = \frac{{13}}{{36}}\end{array}
78−25=3540−1640=1940\begin{array}{l}\frac{7}{8} - \frac{2}{5} = \frac{{35}}{{40}} - \frac{{16}}{{40}}\\ = \frac{{19}}{{40}}\end{array}57−310=5070−2170=2970\begin{array}{l}\frac{5}{7} - \frac{3}{{10}} = \frac{{50}}{{70}} - \frac{{21}}{{70}}\\ = \frac{{29}}{{70}}\end{array}34−19=2736−436=2336\begin{array}{l}\frac{3}{4} - \frac{1}{9} = \frac{{27}}{{36}} - \frac{4}{{36}}\\ = \frac{{23}}{{36}}\end{array}611−213=78143−22143=56143\begin{array}{l}\frac{6}{{11}} - \frac{2}{{13}} = \frac{{78}}{{143}} - \frac{{22}}{{143}}\\ = \frac{{56}}{{143}}\end{array}
512−18=1024−324=724\begin{array}{l}\frac{5}{{12}} - \frac{1}{8} = \frac{{10}}{{24}} - \frac{3}{{24}}\\ = \frac{7}{{24}}\end{array}45−27=2835−1035=1835\begin{array}{l}\frac{4}{5} - \frac{2}{7} = \frac{{28}}{{35}} - \frac{{10}}{{35}}\\ = \frac{{18}}{{35}}\end{array}79−311=7799−2799=5099\begin{array}{l}\frac{7}{9} - \frac{3}{{11}} = \frac{{77}}{{99}} - \frac{{27}}{{99}}\\ = \frac{{50}}{{99}}\end{array}67−29=5463−1463=4063\begin{array}{l}\frac{6}{7} - \frac{2}{9} = \frac{{54}}{{63}} - \frac{{14}}{{63}}\\ = \frac{{40}}{{63}}\end{array}
513−16=3078−1378=1778\begin{array}{l}\frac{5}{{13}} - \frac{1}{6} = \frac{{30}}{{78}} - \frac{{13}}{{78}}\\ = \frac{{17}}{{78}}\end{array}411−15=2055−1155=955\begin{array}{l}\frac{4}{{11}} - \frac{1}{5} = \frac{{20}}{{55}} - \frac{{11}}{{55}}\\ = \frac{9}{{55}}\end{array}710−213=91130−20130=71130\begin{array}{l}\frac{7}{{10}} - \frac{2}{{13}} = \frac{{91}}{{130}} - \frac{{20}}{{130}}\\ = \frac{{71}}{{130}}\end{array}58−314=3556−1256=2356\begin{array}{l}\frac{5}{8} - \frac{3}{{14}} = \frac{{35}}{{56}} - \frac{{12}}{{56}}\\ = \frac{{23}}{{56}}\end{array}
34−112=912−112=812=23\begin{array}{l}\frac{3}{4} - \frac{1}{{12}} = \frac{9}{{12}} - \frac{1}{{12}}\\ = \frac{8}{{12}} = \frac{2}{3}\end{array}67−211=6677−1477=5277\begin{array}{l}\frac{6}{7} - \frac{2}{{11}} = \frac{{66}}{{77}} - \frac{{14}}{{77}}\\ = \frac{{52}}{{77}}\end{array}59−215=2545−645=1945\begin{array}{l}\frac{5}{9} - \frac{2}{{15}} = \frac{{25}}{{45}} - \frac{6}{{45}}\\ = \frac{{19}}{{45}}\end{array}45−17=2835−535=2335\begin{array}{l}\frac{4}{5} - \frac{1}{7} = \frac{{28}}{{35}} - \frac{5}{{35}}\\ = \frac{{23}}{{35}}\end{array}
712−310=3560−1860=1760\begin{array}{l}\frac{7}{{12}} - \frac{3}{{10}} = \frac{{35}}{{60}} - \frac{{18}}{{60}}\\ = \frac{{17}}{{60}}\end{array}613−29=54117−26117=28117\begin{array}{l}\frac{6}{{13}} - \frac{2}{9} = \frac{{54}}{{117}} - \frac{{26}}{{117}}\\ = \frac{{28}}{{117}}\end{array}58−111=5588−888=4788\begin{array}{l}\frac{5}{8} - \frac{1}{{11}} = \frac{{55}}{{88}} - \frac{8}{{88}}\\ = \frac{{47}}{{88}}\end{array}47−110=4070−770=3370\begin{array}{l}\frac{4}{7} - \frac{1}{{10}} = \frac{{40}}{{70}} - \frac{7}{{70}}\\ = \frac{{33}}{{70}}\end{array}

Câu 2

1 điểm
56−14=\frac{5}{6} - \frac{1}{4} =...47−13=\frac{4}{7} - \frac{1}{3} =...35−29=\frac{3}{5} - \frac{2}{9} =...78−310=\frac{7}{8} - \frac{3}{{10}} =...
511−16=\frac{5}{{11}} - \frac{1}{6} =...49−213=\frac{4}{9} - \frac{2}{{13}} =...67−314=\frac{6}{7} - \frac{3}{{14}} =...512−18=\frac{5}{{12}} - \frac{1}{8} =...
34−115=\frac{3}{4} - \frac{1}{{15}} =...710−25=\frac{7}{{10}} - \frac{2}{5} =...89−37=\frac{8}{9} - \frac{3}{7} =...513−14=\frac{5}{{13}} - \frac{1}{4} =...
45−211=\frac{4}{5} - \frac{2}{{11}} =...712−38=\frac{7}{{12}} - \frac{3}{8} =...611−27=\frac{6}{{11}} - \frac{2}{7} =...310−19=\frac{3}{{10}} - \frac{1}{9} =...
56−213=\frac{5}{6} - \frac{2}{{13}} =...47−15=\frac{4}{7} - \frac{1}{5} =...79−311=\frac{7}{9} - \frac{3}{{11}} =...58−215=\frac{5}{8} - \frac{2}{{15}} =...
34−17=\frac{3}{4} - \frac{1}{7} =...613−29=\frac{6}{{13}} - \frac{2}{9} =...45−316=\frac{4}{5} - \frac{3}{{16}} =...710−16=\frac{7}{{10}} - \frac{1}{6} =...
59−27=\frac{5}{9} - \frac{2}{7} =...38−112=\frac{3}{8} - \frac{1}{{12}} =...411−19=\frac{4}{{11}} - \frac{1}{9} =...67−310=\frac{6}{7} - \frac{3}{{10}} =...
512−15=\frac{5}{{12}} - \frac{1}{5} =...713−211=\frac{7}{{13}} - \frac{2}{{11}} =...49−110=\frac{4}{9} - \frac{1}{{10}} =...56−314=\frac{5}{6} - \frac{3}{{14}} =...
35−113=\frac{3}{5} - \frac{1}{{13}} =...78−29=\frac{7}{8} - \frac{2}{9} =...47−111=\frac{4}{7} - \frac{1}{{11}} =...23−712=\frac{2}{3} - \frac{7}{{12}} =...
34−213=\frac{3}{4} - \frac{2}{{13}} =...611−18=\frac{6}{{11}} - \frac{1}{8} =...57−215=\frac{5}{7} - \frac{2}{{15}} =...45−112=\frac{4}{5} - \frac{1}{{12}} =...
Xem đáp án và lời giải

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

56−14=1012−312=712\begin{array}{l}\frac{5}{6} - \frac{1}{4} = \frac{{10}}{{12}} - \frac{3}{{12}}\\ = \frac{7}{{12}}\end{array}47−13=1221−721=521\begin{array}{l}\frac{4}{7} - \frac{1}{3} = \frac{{12}}{{21}} - \frac{7}{{21}}\\ = \frac{5}{{21}}\end{array}35−29=2745−1045=1745\begin{array}{l}\frac{3}{5} - \frac{2}{9} = \frac{{27}}{{45}} - \frac{{10}}{{45}}\\ = \frac{{17}}{{45}}\end{array}78−310=3540−1240=2340\begin{array}{l}\frac{7}{8} - \frac{3}{{10}} = \frac{{35}}{{40}} - \frac{{12}}{{40}}\\ = \frac{{23}}{{40}}\end{array}
511−16=3066−1166=1966\begin{array}{l}\frac{5}{{11}} - \frac{1}{6} = \frac{{30}}{{66}} - \frac{{11}}{{66}}\\ = \frac{{19}}{{66}}\end{array}49−213=52117−18117=34117\begin{array}{l}\frac{4}{9} - \frac{2}{{13}} = \frac{{52}}{{117}} - \frac{{18}}{{117}}\\ = \frac{{34}}{{117}}\end{array}67−314=1214−314=914\begin{array}{l}\frac{6}{7} - \frac{3}{{14}} = \frac{{12}}{{14}} - \frac{3}{{14}}\\ = \frac{9}{{14}}\end{array}512−18=1024−324=724\begin{array}{l}\frac{5}{{12}} - \frac{1}{8} = \frac{{10}}{{24}} - \frac{3}{{24}}\\ = \frac{7}{{24}}\end{array}
34−115=4560−460=4160\begin{array}{l}\frac{3}{4} - \frac{1}{{15}} = \frac{{45}}{{60}} - \frac{4}{{60}}\\ = \frac{{41}}{{60}}\end{array}710−25=710−410=310\begin{array}{l}\frac{7}{{10}} - \frac{2}{5} = \frac{7}{{10}} - \frac{4}{{10}}\\ = \frac{3}{{10}}\end{array}89−37=5663−2763=2963\begin{array}{l}\frac{8}{9} - \frac{3}{7} = \frac{{56}}{{63}} - \frac{{27}}{{63}}\\ = \frac{{29}}{{63}}\end{array}513−14=2052−1352=752\begin{array}{l}\frac{5}{{13}} - \frac{1}{4} = \frac{{20}}{{52}} - \frac{{13}}{{52}}\\ = \frac{7}{{52}}\end{array}
45−211=4455−1055=3455\begin{array}{l}\frac{4}{5} - \frac{2}{{11}} = \frac{{44}}{{55}} - \frac{{10}}{{55}}\\ = \frac{{34}}{{55}}\end{array}712−38=1424−924=524\begin{array}{l}\frac{7}{{12}} - \frac{3}{8} = \frac{{14}}{{24}} - \frac{9}{{24}}\\ = \frac{5}{{24}}\end{array}611−27=4277−2277=2077\begin{array}{l}\frac{6}{{11}} - \frac{2}{7} = \frac{{42}}{{77}} - \frac{{22}}{{77}}\\ = \frac{{20}}{{77}}\end{array}310−19=2790−1090=1790\begin{array}{l}\frac{3}{{10}} - \frac{1}{9} = \frac{{27}}{{90}} - \frac{{10}}{{90}}\\ = \frac{{17}}{{90}}\end{array}
56−213=6578−1278=5378\begin{array}{l}\frac{5}{6} - \frac{2}{{13}} = \frac{{65}}{{78}} - \frac{{12}}{{78}}\\ = \frac{{53}}{{78}}\end{array}47−15=2035−735=1335\begin{array}{l}\frac{4}{7} - \frac{1}{5} = \frac{{20}}{{35}} - \frac{7}{{35}}\\ = \frac{{13}}{{35}}\end{array}79−311=7799−2799=5099\begin{array}{l}\frac{7}{9} - \frac{3}{{11}} = \frac{{77}}{{99}} - \frac{{27}}{{99}}\\ = \frac{{50}}{{99}}\end{array}58−215=75120−16120=59120\begin{array}{l}\frac{5}{8} - \frac{2}{{15}} = \frac{{75}}{{120}} - \frac{{16}}{{120}}\\ = \frac{{59}}{{120}}\end{array}
34−17=2128−428=1714\begin{array}{l}\frac{3}{4} - \frac{1}{7} = \frac{{21}}{{28}} - \frac{4}{{28}}\\ = \frac{{17}}{{14}}\end{array}613−29=54117−26117=28117\begin{array}{l}\frac{6}{{13}} - \frac{2}{9} = \frac{{54}}{{117}} - \frac{{26}}{{117}}\\ = \frac{{28}}{{117}}\end{array}45−316=6480−1580=4980\begin{array}{l}\frac{4}{5} - \frac{3}{{16}} = \frac{{64}}{{80}} - \frac{{15}}{{80}}\\ = \frac{{49}}{{80}}\end{array}710−16=2130−530=1630=815\begin{array}{l}\frac{7}{{10}} - \frac{1}{6} = \frac{{21}}{{30}} - \frac{5}{{30}}\\ = \frac{{16}}{{30}} = \frac{8}{{15}}\end{array}
59−27=3563−1863=1763\begin{array}{l}\frac{5}{9} - \frac{2}{7} = \frac{{35}}{{63}} - \frac{{18}}{{63}}\\ = \frac{{17}}{{63}}\end{array}38−112=924−224=724\begin{array}{l}\frac{3}{8} - \frac{1}{{12}} = \frac{9}{{24}} - \frac{2}{{24}}\\ = \frac{7}{{24}}\end{array}411−19=3699−1199=2599\begin{array}{l}\frac{4}{{11}} - \frac{1}{9} = \frac{{36}}{{99}} - \frac{{11}}{{99}}\\ = \frac{{25}}{{99}}\end{array}67−310=6070−2170=3970\begin{array}{l}\frac{6}{7} - \frac{3}{{10}} = \frac{{60}}{{70}} - \frac{{21}}{{70}}\\ = \frac{{39}}{{70}}\end{array}
512−15=2560−1260=1360\begin{array}{l}\frac{5}{{12}} - \frac{1}{5} = \frac{{25}}{{60}} - \frac{{12}}{{60}}\\ = \frac{{13}}{{60}}\end{array}713−211=77143−26143=51143\begin{array}{l}\frac{7}{{13}} - \frac{2}{{11}} = \frac{{77}}{{143}} - \frac{{26}}{{143}}\\ = \frac{{51}}{{143}}\end{array}49−110=4090−990=3190\begin{array}{l}\frac{4}{9} - \frac{1}{{10}} = \frac{{40}}{{90}} - \frac{9}{{90}}\\ = \frac{{31}}{{90}}\end{array}56−314=3542−942=2642=1321\begin{array}{l}\frac{5}{6} - \frac{3}{{14}} = \frac{{35}}{{42}} - \frac{9}{{42}}\\ = \frac{{26}}{{42}} = \frac{{13}}{{21}}\end{array}
35−113=3965−565=3465\begin{array}{l}\frac{3}{5} - \frac{1}{{13}} = \frac{{39}}{{65}} - \frac{5}{{65}}\\ = \frac{{34}}{{65}}\end{array}78−29=6372−1672=4772\begin{array}{l}\frac{7}{8} - \frac{2}{9} = \frac{{63}}{{72}} - \frac{{16}}{{72}}\\ = \frac{{47}}{{72}}\end{array}47−111=4477−777=3777\begin{array}{l}\frac{4}{7} - \frac{1}{{11}} = \frac{{44}}{{77}} - \frac{7}{{77}}\\ = \frac{{37}}{{77}}\end{array}23−712=85153−27153=58153\begin{array}{l}\frac{2}{3} - \frac{7}{{12}} = \frac{{85}}{{153}} - \frac{{27}}{{153}}\\ = \frac{{58}}{{153}}\end{array}
34−213=3952−852=3152\begin{array}{l}\frac{3}{4} - \frac{2}{{13}} = \frac{{39}}{{52}} - \frac{8}{{52}}\\ = \frac{{31}}{{52}}\end{array}611−18=4888−1188=3788\begin{array}{l}\frac{6}{{11}} - \frac{1}{8} = \frac{{48}}{{88}} - \frac{{11}}{{88}}\\ = \frac{{37}}{{88}}\end{array}57−215=75105−14105=61105\begin{array}{l}\frac{5}{7} - \frac{2}{{15}} = \frac{{75}}{{105}} - \frac{{14}}{{105}}\\ = \frac{{61}}{{105}}\end{array}45−112=4860−560=4360\begin{array}{l}\frac{4}{5} - \frac{1}{{12}} = \frac{{48}}{{60}} - \frac{5}{{60}}\\ = \frac{{43}}{{60}}\end{array}

Câu 3

1 điểm
512−211=\frac{5}{{12}} - \frac{2}{{11}} =...711−15=\frac{7}{{11}} - \frac{1}{5} =...67−313=\frac{6}{7} - \frac{3}{{13}} =...45−18=\frac{4}{5} - \frac{1}{8} =...
613−19=\frac{6}{{13}} - \frac{1}{9} =...58−29=\frac{5}{8} - \frac{2}{9} =...79−16=\frac{7}{9} - \frac{1}{6} =...47−214=\frac{4}{7} - \frac{2}{{14}} =...
511−38=\frac{5}{{11}} - \frac{3}{8} =...611−314=\frac{6}{{11}} - \frac{3}{{14}} =...712−314=\frac{7}{{12}} - \frac{3}{{14}} =...45−213=\frac{4}{5} - \frac{2}{{13}} =...
67−19=\frac{6}{7} - \frac{1}{9} =...57−38=\frac{5}{7} - \frac{3}{8} =...49−110=\frac{4}{9} - \frac{1}{{10}} =...710−27=\frac{7}{{10}} - \frac{2}{7} =...
59−27=\frac{5}{9} - \frac{2}{7} =...613−25=\frac{6}{{13}} - \frac{2}{5} =...411−16=\frac{4}{{11}} - \frac{1}{6} =...710−311=\frac{7}{{10}} - \frac{3}{{11}} =...
56−314=\frac{5}{6} - \frac{3}{{14}} =...712−211=\frac{7}{{12}} - \frac{2}{{11}} =...59−18=\frac{5}{9} - \frac{1}{8} =...67−110=\frac{6}{7} - \frac{1}{{10}} =...
511−18=\frac{5}{{11}} - \frac{1}{8} =...710−29=\frac{7}{{10}} - \frac{2}{9} =...512−213=\frac{5}{{12}} - \frac{2}{{13}} =...411−17=\frac{4}{{11}} - \frac{1}{7} =...
79−25=\frac{7}{9} - \frac{2}{5} =...58−311=\frac{5}{8} - \frac{3}{{11}} =...613−15=\frac{6}{{13}} - \frac{1}{5} =...711−38=\frac{7}{{11}} - \frac{3}{8} =...
45−16=\frac{4}{5} - \frac{1}{6} =...712−38=\frac{7}{{12}} - \frac{3}{8} =...34−211=\frac{3}{4} - \frac{2}{{11}} =...57−14=\frac{5}{7} - \frac{1}{4} =...
611−213=\frac{6}{{11}} - \frac{2}{{13}} =...45−313=\frac{4}{5} - \frac{3}{{13}} =...57−211=\frac{5}{7} - \frac{2}{{11}} =...710−16=\frac{7}{{10}} - \frac{1}{6} =...
Xem đáp án và lời giải

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

512−211=55132−24132=31132\begin{array}{l}\frac{5}{{12}} - \frac{2}{{11}} = \frac{{55}}{{132}} - \frac{{24}}{{132}}\\ = \frac{{31}}{{132}}\end{array}711−15=3555−1155=2455\begin{array}{l}\frac{7}{{11}} - \frac{1}{5} = \frac{{35}}{{55}} - \frac{{11}}{{55}}\\ = \frac{{24}}{{55}}\end{array}67−313=7891−2191=5791\begin{array}{l}\frac{6}{7} - \frac{3}{{13}} = \frac{{78}}{{91}} - \frac{{21}}{{91}}\\ = \frac{{57}}{{91}}\end{array}45−18=3240−540=2740\begin{array}{l}\frac{4}{5} - \frac{1}{8} = \frac{{32}}{{40}} - \frac{5}{{40}}\\ = \frac{{27}}{{40}}\end{array}
613−19=54117−13117=41117\begin{array}{l}\frac{6}{{13}} - \frac{1}{9} = \frac{{54}}{{117}} - \frac{{13}}{{117}}\\ = \frac{{41}}{{117}}\end{array}58−29=4572−1672=2972\begin{array}{l}\frac{5}{8} - \frac{2}{9} = \frac{{45}}{{72}} - \frac{{16}}{{72}}\\ = \frac{{29}}{{72}}\end{array}79−16=1418−318=1118\begin{array}{l}\frac{7}{9} - \frac{1}{6} = \frac{{14}}{{18}} - \frac{3}{{18}}\\ = \frac{{11}}{{18}}\end{array}47−214=60105−14105=46105\begin{array}{l}\frac{4}{7} - \frac{2}{{14}} = \frac{{60}}{{105}} - \frac{{14}}{{105}}\\ = \frac{{46}}{{105}}\end{array}
511−38=4088−3388=788\begin{array}{l}\frac{5}{{11}} - \frac{3}{8} = \frac{{40}}{{88}} - \frac{{33}}{{88}}\\ = \frac{7}{{88}}\end{array}611−314=84154−33154=51154\begin{array}{l}\frac{6}{{11}} - \frac{3}{{14}} = \frac{{84}}{{154}} - \frac{{33}}{{154}}\\ = \frac{{51}}{{154}}\end{array}712−314=4984−1884=3184\begin{array}{l}\frac{7}{{12}} - \frac{3}{{14}} = \frac{{49}}{{84}} - \frac{{18}}{{84}}\\ = \frac{{31}}{{84}}\end{array}45−213=5265−1065=4265\begin{array}{l}\frac{4}{5} - \frac{2}{{13}} = \frac{{52}}{{65}} - \frac{{10}}{{65}}\\ = \frac{{42}}{{65}}\end{array}
67−19=5463−763=4763\begin{array}{l}\frac{6}{7} - \frac{1}{9} = \frac{{54}}{{63}} - \frac{7}{{63}}\\ = \frac{{47}}{{63}}\end{array}57−38=4056−2156=1956\begin{array}{l}\frac{5}{7} - \frac{3}{8} = \frac{{40}}{{56}} - \frac{{21}}{{56}}\\ = \frac{{19}}{{56}}\end{array}49−110=4090−990=3190\begin{array}{l}\frac{4}{9} - \frac{1}{{10}} = \frac{{40}}{{90}} - \frac{9}{{90}}\\ = \frac{{31}}{{90}}\end{array}710−27=4970−2070=2970\begin{array}{l}\frac{7}{{10}} - \frac{2}{7} = \frac{{49}}{{70}} - \frac{{20}}{{70}}\\ = \frac{{29}}{{70}}\end{array}
59−27=3563−1863=1763\begin{array}{l}\frac{5}{9} - \frac{2}{7} = \frac{{35}}{{63}} - \frac{{18}}{{63}}\\ = \frac{{17}}{{63}}\end{array}613−25=3065−2665=465\begin{array}{l}\frac{6}{{13}} - \frac{2}{5} = \frac{{30}}{{65}} - \frac{{26}}{{65}}\\ = \frac{4}{{65}}\end{array}411−16=2466−1166=1366\begin{array}{l}\frac{4}{{11}} - \frac{1}{6} = \frac{{24}}{{66}} - \frac{{11}}{{66}}\\ = \frac{{13}}{{66}}\end{array}710−311=77110−30110=47110\begin{array}{l}\frac{7}{{10}} - \frac{3}{{11}} = \frac{{77}}{{110}} - \frac{{30}}{{110}}\\ = \frac{{47}}{{110}}\end{array}
56−314=3542−942=2642=1321\begin{array}{l}\frac{5}{6} - \frac{3}{{14}} = \frac{{35}}{{42}} - \frac{9}{{42}}\\ = \frac{{26}}{{42}} = \frac{{13}}{{21}}\end{array}712−211=77132−24132=53132\begin{array}{l}\frac{7}{{12}} - \frac{2}{{11}} = \frac{{77}}{{132}} - \frac{{24}}{{132}}\\ = \frac{{53}}{{132}}\end{array}59−18=4072−972=3172\begin{array}{l}\frac{5}{9} - \frac{1}{8} = \frac{{40}}{{72}} - \frac{9}{{72}}\\ = \frac{{31}}{{72}}\end{array}67−110=6070−770=5370\begin{array}{l}\frac{6}{7} - \frac{1}{{10}} = \frac{{60}}{{70}} - \frac{7}{{70}}\\ = \frac{{53}}{{70}}\end{array}
511−18=4088−1188=2988\begin{array}{l}\frac{5}{{11}} - \frac{1}{8} = \frac{{40}}{{88}} - \frac{{11}}{{88}}\\ = \frac{{29}}{{88}}\end{array}710−29=6390−2090=4390\begin{array}{l}\frac{7}{{10}} - \frac{2}{9} = \frac{{63}}{{90}} - \frac{{20}}{{90}}\\ = \frac{{43}}{{90}}\end{array}512−213=65156−24156=41156\begin{array}{l}\frac{5}{{12}} - \frac{2}{{13}} = \frac{{65}}{{156}} - \frac{{24}}{{156}}\\ = \frac{{41}}{{156}}\end{array}411−17=2877−1177=1777\begin{array}{l}\frac{4}{{11}} - \frac{1}{7} = \frac{{28}}{{77}} - \frac{{11}}{{77}}\\ = \frac{{17}}{{77}}\end{array}
79−25=3545−1845=1745\begin{array}{l}\frac{7}{9} - \frac{2}{5} = \frac{{35}}{{45}} - \frac{{18}}{{45}}\\ = \frac{{17}}{{45}}\end{array}58−311=5588−2488=3188\begin{array}{l}\frac{5}{8} - \frac{3}{{11}} = \frac{{55}}{{88}} - \frac{{24}}{{88}}\\ = \frac{{31}}{{88}}\end{array}613−15=3065−1365=1765\begin{array}{l}\frac{6}{{13}} - \frac{1}{5} = \frac{{30}}{{65}} - \frac{{13}}{{65}}\\ = \frac{{17}}{{65}}\end{array}711−38=5688−3388=2388\begin{array}{l}\frac{7}{{11}} - \frac{3}{8} = \frac{{56}}{{88}} - \frac{{33}}{{88}}\\ = \frac{{23}}{{88}}\end{array}
45−16=2430−530=1930\begin{array}{l}\frac{4}{5} - \frac{1}{6} = \frac{{24}}{{30}} - \frac{5}{{30}}\\ = \frac{{19}}{{30}}\end{array}712−38=1424−924=524\begin{array}{l}\frac{7}{{12}} - \frac{3}{8} = \frac{{14}}{{24}} - \frac{9}{{24}}\\ = \frac{5}{{24}}\end{array}34−211=3344−844=2544\begin{array}{l}\frac{3}{4} - \frac{2}{{11}} = \frac{{33}}{{44}} - \frac{8}{{44}}\\ = \frac{{25}}{{44}}\end{array}57−14=2028−728=1328\begin{array}{l}\frac{5}{7} - \frac{1}{4} = \frac{{20}}{{28}} - \frac{7}{{28}}\\ = \frac{{13}}{{28}}\end{array}
611−213=66143−22143=44143\begin{array}{l}\frac{6}{{11}} - \frac{2}{{13}} = \frac{{66}}{{143}} - \frac{{22}}{{143}}\\ = \frac{{44}}{{143}}\end{array}45−313=5265−1565=3765\begin{array}{l}\frac{4}{5} - \frac{3}{{13}} = \frac{{52}}{{65}} - \frac{{15}}{{65}}\\ = \frac{{37}}{{65}}\end{array}57−211=5577−1477=4177\begin{array}{l}\frac{5}{7} - \frac{2}{{11}} = \frac{{55}}{{77}} - \frac{{14}}{{77}}\\ = \frac{{41}}{{77}}\end{array}710−16=2130−530=1630=815\begin{array}{l}\frac{7}{{10}} - \frac{1}{6} = \frac{{21}}{{30}} - \frac{5}{{30}}\\ = \frac{{16}}{{30}} = \frac{8}{{15}}\end{array}

Câu 4

1 điểm
817−28=\frac{8}{{17}} - \frac{2}{8} =...519−14=\frac{5}{{19}} - \frac{1}{4} =...1023−15=\frac{{10}}{{23}} - \frac{1}{5} =...625−17=\frac{6}{{25}} - \frac{1}{7} =...
1029−28=\frac{10}{{29}} - \frac{2}{8} =...716−29=\frac{7}{{16}} - \frac{2}{9} =...521−16=\frac{5}{{21}} - \frac{1}{6} =...926−310=\frac{9}{{26}} - \frac{3}{{10}} =...
415−122=\frac{4}{{15}} - \frac{1}{{22}} =...627−212=\frac{6}{{27}} - \frac{2}{{12}} =...831−37=\frac{8}{{31}} - \frac{3}{7} =...720−217=\frac{7}{{20}} - \frac{2}{{17}} =...
518−111=\frac{5}{{18}} - \frac{1}{{11}} =...928−415=\frac{9}{{28}} - \frac{4}{{15}} =...619−213=\frac{6}{{19}} - \frac{2}{{13}} =...825−316=\frac{8}{{25}} - \frac{3}{{16}} =...
722−29=\frac{7}{{22}} - \frac{2}{9} =...524−110=\frac{5}{{24}} - \frac{1}{{10}} =...929−417=\frac{9}{{29}} - \frac{4}{{17}} =...623−214=\frac{6}{{23}} - \frac{2}{{14}} =...
827−311=\frac{8}{{27}} - \frac{3}{{11}} =...726−215=\frac{7}{{26}} - \frac{2}{{15}} =...517−18=\frac{5}{{17}} - \frac{1}{8} =...931−418=\frac{9}{{31}} - \frac{4}{{18}} =...
620−219=\frac{6}{{20}} - \frac{2}{{19}} =...829−314=\frac{8}{{29}} - \frac{3}{{14}} =...724−213=\frac{7}{{24}} - \frac{2}{{13}} =...522−19=\frac{5}{{22}} - \frac{1}{9} =...
925−421=\frac{9}{{25}} - \frac{4}{{21}} =...616−27=\frac{6}{{16}} - \frac{2}{7} =...823−317=\frac{8}{{23}} - \frac{3}{{17}} =...719−210=\frac{7}{{19}} - \frac{2}{{10}} =...
528−112=\frac{5}{{28}} - \frac{1}{{12}} =...927−414=\frac{9}{{27}} - \frac{4}{{14}} =...629−215=\frac{6}{{29}} - \frac{2}{{15}} =...821−316=\frac{8}{{21}} - \frac{3}{{16}} =...
730−211=\frac{7}{{30}} - \frac{2}{{11}} =...526−113=\frac{5}{{26}} - \frac{1}{{13}} =...922−419=\frac{9}{{22}} - \frac{4}{{19}} =...617−29=\frac{6}{{17}} - \frac{2}{9} =...
Xem đáp án và lời giải

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

817−28=64136−34136=30136=1568\begin{array}{l}\frac{8}{{17}} - \frac{2}{8} = \frac{{64}}{{136}} - \frac{{34}}{{136}}\\ = \frac{{30}}{{136}} = \frac{{15}}{{68}}\end{array}519−14=2076−1976=176\begin{array}{l}\frac{5}{{19}} - \frac{1}{4} = \frac{{20}}{{76}} - \frac{{19}}{{76}}\\ = \frac{1}{{76}}\end{array}1023−15=50115−23115=27115\begin{array}{l}\frac{{10}}{{23}} - \frac{1}{5} = \frac{{50}}{{115}} - \frac{{23}}{{115}}\\ = \frac{{27}}{{115}}\end{array}625−17=42175−25175=17175\begin{array}{l}\frac{6}{{25}} - \frac{1}{7} = \frac{{42}}{{175}} - \frac{{25}}{{175}}\\ = \frac{{17}}{{175}}\end{array}
829−38=80232−58232=22232=11116\begin{array}{l}\frac{8}{{29}} - \frac{3}{8} = \frac{{80}}{{232}} - \frac{{58}}{{232}}\\ = \frac{{22}}{{232}} = \frac{{11}}{{116}}\end{array}716−29=63144−32144=31144\begin{array}{l}\frac{7}{{16}} - \frac{2}{9} = \frac{{63}}{{144}} - \frac{{32}}{{144}}\\ = \frac{{31}}{{144}}\end{array}521−16=1042−742=342=114\begin{array}{l}\frac{5}{{21}} - \frac{1}{6} = \frac{{10}}{{42}} - \frac{7}{{42}}\\ = \frac{3}{{42}} = \frac{1}{{14}}\end{array}926−310=45130−39130=6130=365\begin{array}{l}\frac{9}{{26}} - \frac{3}{{10}} = \frac{{45}}{{130}} - \frac{{39}}{{130}}\\ = \frac{6}{{130}} = \frac{3}{{65}}\end{array}
415−122=88330−15330=73330\begin{array}{l}\frac{4}{{15}} - \frac{1}{{22}} = \frac{{88}}{{330}} - \frac{{15}}{{330}}\\ = \frac{{73}}{{330}}\end{array}627−212=24108−18108=6108=118\begin{array}{l}\frac{6}{{27}} - \frac{2}{{12}} = \frac{{24}}{{108}} - \frac{{18}}{{108}}\\ = \frac{6}{{108}} = \frac{1}{{18}}\end{array}831−37=70217−62217=8217\begin{array}{l}\frac{8}{{31}} - \frac{3}{7} = \frac{{70}}{{217}} - \frac{{62}}{{217}}\\ = \frac{8}{{217}}\end{array}720−217=119340−40340=79340\begin{array}{l}\frac{7}{{20}} - \frac{2}{{17}} = \frac{{119}}{{340}} - \frac{{40}}{{340}}\\ = \frac{{79}}{{340}}\end{array}
518−111=55198−18198=37198\begin{array}{l}\frac{5}{{18}} - \frac{1}{{11}} = \frac{{55}}{{198}} - \frac{{18}}{{198}}\\ = \frac{{37}}{{198}}\end{array}928−415=135420−112420=23420\begin{array}{l}\frac{9}{{28}} - \frac{4}{{15}} = \frac{{135}}{{420}} - \frac{{112}}{{420}}\\ = \frac{{23}}{{420}}\end{array}619−213=114247−38247=76247\begin{array}{l}\frac{6}{{19}} - \frac{2}{{13}} = \frac{{114}}{{247}} - \frac{{38}}{{247}}\\ = \frac{{76}}{{247}}\end{array}825−316=128400−75400=53400\begin{array}{l}\frac{8}{{25}} - \frac{3}{{16}} = \frac{{128}}{{400}} - \frac{{75}}{{400}}\\ = \frac{{53}}{{400}}\end{array}
722−29=63198−44198=19198\begin{array}{l}\frac{7}{{22}} - \frac{2}{9} = \frac{{63}}{{198}} - \frac{{44}}{{198}}\\ = \frac{{19}}{{198}}\end{array}524−110=25120−12120=13120\begin{array}{l}\frac{5}{{24}} - \frac{1}{{10}} = \frac{{25}}{{120}} - \frac{{12}}{{120}}\\ = \frac{{13}}{{120}}\end{array}929−417=153493−116493=37493\begin{array}{l}\frac{9}{{29}} - \frac{4}{{17}} = \frac{{153}}{{493}} - \frac{{116}}{{493}}\\ = \frac{{37}}{{493}}\end{array}623−214=84322−46322=38322=47161\begin{array}{l}\frac{6}{{23}} - \frac{2}{{14}} = \frac{{84}}{{322}} - \frac{{46}}{{322}}\\ = \frac{{38}}{{322}} = \frac{{47}}{{161}}\end{array}
827−311=88297−81297=7297\begin{array}{l}\frac{8}{{27}} - \frac{3}{{11}} = \frac{{88}}{{297}} - \frac{{81}}{{297}}\\ = \frac{7}{{297}}\end{array}726−215=105390−52390=53390\begin{array}{l}\frac{7}{{26}} - \frac{2}{{15}} = \frac{{105}}{{390}} - \frac{{52}}{{390}}\\ = \frac{{53}}{{390}}\end{array}517−18=40136−17136=23136\begin{array}{l}\frac{5}{{17}} - \frac{1}{8} = \frac{{40}}{{136}} - \frac{{17}}{{136}}\\ = \frac{{23}}{{136}}\end{array}931−418=162558−124558=38558=19279\begin{array}{l}\frac{9}{{31}} - \frac{4}{{18}} = \frac{{162}}{{558}} - \frac{{124}}{{558}} = \frac{{38}}{{558}}\\ = \frac{{19}}{{279}}\end{array}
620−219=114380−40380=74380=37190\begin{array}{l}\frac{6}{{20}} - \frac{2}{{19}} = \frac{{114}}{{380}} - \frac{{40}}{{380}}\\ = \frac{{74}}{{380}} = \frac{{37}}{{190}}\end{array}829−314=112406−87406=25406\begin{array}{l}\frac{8}{{29}} - \frac{3}{{14}} = \frac{{112}}{{406}} - \frac{{87}}{{406}}\\ = \frac{{25}}{{406}}\end{array}724−213=91312−48312=43312\begin{array}{l}\frac{7}{{24}} - \frac{2}{{13}} = \frac{{91}}{{312}} - \frac{{48}}{{312}}\\ = \frac{{43}}{{312}}\end{array}522−19=45198−22198=23198\begin{array}{l}\frac{5}{{22}} - \frac{1}{9} = \frac{{45}}{{198}} - \frac{{22}}{{198}}\\ = \frac{{23}}{{198}}\end{array}
925−421=189525−100525=89525\begin{array}{l}\frac{9}{{25}} - \frac{4}{{21}} = \frac{{189}}{{525}} - \frac{{100}}{{525}}\\ = \frac{{89}}{{525}}\end{array}616−27=42112−32112=10112=556\begin{array}{l}\frac{6}{{16}} - \frac{2}{7} = \frac{{42}}{{112}} - \frac{{32}}{{112}}\\ = \frac{{10}}{{112}} = \frac{5}{{56}}\end{array}823−317=136391−69391=67391\begin{array}{l}\frac{8}{{23}} - \frac{3}{{17}} = \frac{{136}}{{391}} - \frac{{69}}{{391}}\\ = \frac{{67}}{{391}}\end{array}719−210=56190−33190=23190\begin{array}{l}\frac{7}{{19}} - \frac{2}{{10}} = \frac{{56}}{{190}} - \frac{{33}}{{190}}\\ = \frac{{23}}{{190}}\end{array}
528−112=1584−784=884=221\begin{array}{l}\frac{5}{{28}} - \frac{1}{{12}} = \frac{{15}}{{84}} - \frac{7}{{84}}\\ = \frac{8}{{84}} = \frac{2}{{21}}\end{array}927−414=126378−108378=18378=121\begin{array}{l}\frac{9}{{27}} - \frac{4}{{14}} = \frac{{126}}{{378}} - \frac{{108}}{{378}}\\ = \frac{{18}}{{378}} = \frac{1}{{21}}\end{array}629−215=90435−58435=32435\begin{array}{l}\frac{6}{{29}} - \frac{2}{{15}} = \frac{{90}}{{435}} - \frac{{58}}{{435}}\\ = \frac{{32}}{{435}}\end{array}821−316=128336−63336=65336\begin{array}{l}\frac{8}{{21}} - \frac{3}{{16}} = \frac{{128}}{{336}} - \frac{{63}}{{336}}\\ = \frac{{65}}{{336}}\end{array}
730−211=77330−60330=17330\begin{array}{l}\frac{7}{{30}} - \frac{2}{{11}} = \frac{{77}}{{330}} - \frac{{60}}{{330}}\\ = \frac{{17}}{{330}}\end{array}526−113=526−226=326\begin{array}{l}\frac{5}{{26}} - \frac{1}{{13}} = \frac{5}{{26}} - \frac{2}{{26}}\\ = \frac{3}{{26}}\end{array}922−419=171418−88418=83418\begin{array}{l}\frac{9}{{22}} - \frac{4}{{19}} = \frac{{171}}{{418}} - \frac{{88}}{{418}}\\ = \frac{{83}}{{418}}\end{array}617−29=54153−34153=20153\begin{array}{l}\frac{6}{{17}} - \frac{2}{9} = \frac{{54}}{{153}} - \frac{{34}}{{153}}\\ = \frac{{20}}{{153}}\end{array}
Làm bài

Tất cả đề II. Phép trừ phân số khác mẫu · Các bộ sách Toán Lớp 5