Simplify the Expression.

-1/8 - 2/7 =

A. - 1/8

B. 23/56

C. - 23/56

D. 1/5

Since one number is negative and one is not and it is asking us to subtract, we have to make the second fraction a negative and add them together.

We can multiply 7 and 8 to get a common denominator and so we now have - 7/56 + - 16/56.

We can now add the negatives together to get - 23/56 as your final answer.