The answer is 2 and 3/8.
To find this we need to look at the entire equation.
-7 1/8 - -9 1/2
When we have two negatives like this, we need to turn it into an addition sign.
-7 1/8 + 9 1/2
Now we need to give them common denominators
-7 1/8 + 9 4/8
Now we can simply add the two parts
2 3/8