Question

What’s the numerator for the following rational expression

Answer 1

That would be (x + 3)

Answer 2

Answer: x + 3.

Explanation:

The expression: $\frac{x}{y} + \frac{3}{y}$ is a sum of two fractions with equal denominator.

The sum of two equations with equal denominator permits copy the common denominator and add the numerators. This is the result:

$\frac{x}{y} + \frac{3}{y} = \frac{x+3}{y}$

So, the numerator is x + 3.