# How do you (2a²)/(5b³)?

$\frac{2 {a}^{2}}{5 {b}^{3}}$ is already simplified, unless you want all of the exponents to be in the numerator, in which case it would be $\frac{2 {a}^{2} {b}^{-} 3}{5}$.
If you want all of the exponents in numerator, apply the exponent rule ${x}^{-} m = \frac{1}{x} ^ m$ in reverse: $\frac{1}{x} ^ m = {x}^{-} m$.
$\frac{2 {a}^{2}}{5 {b}^{3}} = \frac{2 {a}^{2} {b}^{-} 3}{5}$