The expression
$\displaystyle {\frac{{{\left({x}^{{4}}{y}^{{2}}\right)}^{{3}}{\left({x}{y}^{{3}}\right)}^{{-{2}}}}}{{{x}^{{4}}{y}^{{4}}}}}$

equals $\displaystyle \frac{{x}^{{{e}}}}{{y}^{{{d}}}}$ where
the exponent $\displaystyle {e}$ of $\displaystyle {x}$ is , the exponent $\displaystyle {d}$ of $\displaystyle {y}$ is .