Question

`-a-(7)/(8) a`
paso a paso

Answer 1

Explanation:

-a-7a/8

-8a-7a/8

-15a/8

Hope it helps you

Answer 2

Explanation:

WE have to find the least common denominator and it is 8

`-a =(-a*8)/(1*8)=(-8a)/(8)\\\\-a -(7)/(8)a=-(8)/(8)a-(7)/(8)a\\\\=(-8a-7a)/(8)\\\\=(-15a)/(8)\\\\`