Answer
$$2$$
Work Step by Step
$$p=-4,q=8,r=-10$$
$$\frac{\frac{q}{4}-\frac{r}{5}}{\frac{p}{2}+\frac{q}{2}}$$
$$\frac{\frac{8}{4}-\frac{-10}{5}}{\frac{-4}{2}+\frac{8}{2}}$$
$$\frac{2+2}{-2+4}$$
$$\frac{4}{2}$$
$$2$$
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