Question

Tính A 3/4 + 5/8 B 3 - 4/7

Answer 1

`a)3/4+5/8`

`=6/8+5/8`

`=11/8`

__

`b)3-4/7`

`=21/7-4/7`

`=17/7`

Answer 2

a: =6/8+5/8=11/8

b: =21/7-4/7

=17/7