Incorrect. $\displaystyle\frac{{{20}\cdot{{6}}^{{6}}}}{{{4}\cdot{{6}}^{{5}}}}=\frac{{20}}{{4}}\cdot\frac{{{6}}^{{6}}}{{{6}}^{{5}}}={5}\cdot{{6}}^{{{6}-{5}}}\usepackage{cmbright}\Huge\$

Simplify further, applying the correct order of operations.