Answer
$\frac{1}{6xy^8}$
Work Step by Step
$\frac{6^2x^{-4}y^{-1}}{6^3x^{-3}y^7}$
$=\frac{1}{6}x^{-4-(-3)}y^{-1-7}$
$=\frac{1}{6}x^{-1}y^{-8}$
$=\frac{1}{6xy^8}$
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