Tính: a) 3 /5 + 6/5 = . . .

11/30

Tính:

a) \[\frac{3}{5} + \frac{6}{5} = ...\] b) \[\frac{7}{{11}} + \frac{2}{{11}} = ...\] c) \[\frac{{56}}{{31}} - \frac{{15}}{{31}} = ...\] d) \[\frac{{25}}{9} - \frac{8}{9} = ...\]

e) \[\frac{{15}}{{48}} + \frac{{21}}{{48}} = ...\] f) \[\frac{6}{{41}} + \frac{{15}}{{41}} = ...\] g) \[\frac{7}{{10}} - \frac{4}{{10}} = ...\] h) \[\frac{{50}}{{27}} - \frac{{21}}{{27}} = ...\]

i) \[\frac{9}{{21}} + \frac{5}{{21}} = ...\]j) \[\frac{{12}}{{19}} + \frac{5}{{19}} = ...\] k) \[\frac{{15}}{{16}} - \frac{9}{{16}} = ...\]l) \[\frac{{12}}{5} - \frac{1}{5} = ...\]

Nhập câu trả lời ở đây

0/3000 ký tự

Giải thích

a) \[\frac{3}{5} + \frac{6}{5} = \frac{9}{5}\] b) \[\frac{7}{{11}} + \frac{2}{{11}} = \frac{9}{{11}}\] c) \[\frac{{56}}{{31}} - \frac{{15}}{{31}} = \frac{{41}}{{31}}\] d) \[\frac{{25}}{9} - \frac{8}{9} = \frac{{17}}{9}\]

e) \[\frac{{15}}{{48}} + \frac{{21}}{{48}} = \frac{{36}}{{48}}\] f) \[\frac{6}{{41}} + \frac{{15}}{{41}} = \frac{{21}}{{41}}\] g) \[\frac{7}{{10}} - \frac{4}{{10}} = \frac{3}{{10}}\] h) \[\frac{{50}}{{27}} - \frac{{21}}{{27}} = \frac{{29}}{{27}}\]

i) \[\frac{9}{{21}} + \frac{5}{{21}} = \frac{{14}}{{21}}\] j) \[\frac{{12}}{{19}} + \frac{5}{{19}} = \frac{{17}}{{19}}\] k) \[\frac{{15}}{{16}} - \frac{9}{{16}} = \frac{6}{{16}}\] l) \[\frac{{12}}{5} - \frac{1}{5} = \frac{{11}}{5}\]