AMC10 2015 10B, Problem 1

What is the value of $2-(-2)^{-2}$?

Solution: $2-(-2)^{-2}=2-\frac{1}{(-2)^2}=2-\frac{1}{4}=\frac{8}{4}-\frac{1}{4}=\fbox{\dfrac{7}{4}}$

Answer: \dfrac{7}{4}