Answer
$= \frac{(8x^{2}-6y)}{x^{2}y}$
Work Step by Step
1) Multiply a fraction with the other denominator to obtain a common denominator between the two fractions. In this case, we multiply the first fraction by $x^{2}/x^{2}$ and the second fraction by $y/y$.
2) Subtract
$= \frac{8}{y} - \frac{6}{x^{2}}$
$= \frac{8x^{2}}{x^{2}y} - \frac{6y}{x^{2}y}$
$= \frac{8x^{2}-6y}{x^{2}y}$
