Question

-13/20+7/10+11/14-5/7?

Answer 1

`17/140`

Explanation:

`-13/20+7/10+11/14-5/7`

`=-13/20+14/20+11/14-10/14`

`=1/20+1/14`

`=7/140+10/140`

`=17/140`