CPM Homework Help : PC3 Problem 6-49

Simplify: $\large{\frac { x ^ { 2 } y ^ { - 3 } + x ^ { - 2 } y } { y ^ { - 1 } + x ^ { - 2 } }}$

Hint:

Multiply the fraction by a Giant One of: $\small{ \frac{y^3x^2}{y^3x^2}}$