Question

12/7+5/11

Answer 1

`12/7 + 5/11`

`=(12*11)/(7*11) + (5*7)/(7*11)`

`=132/77 + 35/77`

`=(132 + 35)/77`

`= 167/77`

Answer 2

ta có : 12/7 + 5/11
        = 12 x 11/7 x 11 + 5 x 7/ 11 x 7

        = 132/77 + 35 / 77

        = 132 + 35 / 77

        = 167 / 77