Your answer should be 60%, but I'm not sure.
(edited)
The first step: Simplify the expression with:


The second step: Put the values of a = 3 and b = -2 to the expression:

<h2>Answer: 1</h2>
30 over 4 = 15·2 over 2·2 = 15 over 2 = 1 + 7·2 over 2 = 7 1 over 2
Whole number =7
Fraction = 1 over 2
Hope this helps