Question

What is -1/5 + 7/10 i keep getting 9/10 but on my hw paper the answer doesn’t match

Answer 1

1/2

Explanation:

1. LCD = 10

2.
`-(1)/(5) * (2)/(2) + (7)/(10)`

3.
`-(2)/(10) + (7)/(10)`

4.
`-(2+7)/(10)`

5. 5/10

6. Simplify : 1/2

Hope this helps!
--Blu