\[\frac{5x - 6}{x^{2} - 3xy} - \frac{5y - 2}{xy - 3y^{2}} =\]
\[= \frac{5x - 6}{x(x - 3y)} - \frac{5y - 2}{y(x - 3y)} =\]
\[= \frac{5xy - 6y - 5xy + 2x}{\text{xy}(x - 3y)} =\]