Answer
$\displaystyle \frac{P+Q}{R}$,
numerators,
common denominator.
Work Step by Step
$$\displaystyle \frac{P}{R}+\frac{Q}{R}= \displaystyle \frac{P+Q}{R}$$
To add rational expressions with the same denominator,
add numerators and place the sum over the common denominator.
If possible, factor and simplify the result.
