$$\frac{2a^{2}-3ab-gb^{2}}{2ab^{2}+3b^{3}}$$
$\frac{2a^{2}-3ab-gb^{2}}{\left(2a+3b\right)b^{2}}$
$\frac{2a^{2}-3ab-gb^{2}}{2ab^{2}+3b^{3}}$