Answer
$\frac{y^{9}}{3x^{8}}$
Work Step by Step
$\frac{x^{-3}y^{2}}{3x^{5}y^{-7}}$
$\frac{1}{3}\times\frac{1}{x^{5+3}}\times y^{2+7}$
$\frac{1}{3}\times\frac{1}{x^{8}}\times y^{9}$
$\frac{y^{9}}{3x^{8}}$
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