Question

4th grade math and idk how to do it!!!

Answer 1

`(4)/(10)` or when it's simplified
`(2)/(5)`

Explanation:

`(7)/(10) - (3)/(10)=(4)/(10)=(2)/(5)`

Answer 2

The answer would be 4/10.

3/10 + 4/10 = 7/10