I think you should re-check the question because you might have made a typo.
Answer:
Yes, Hamdan is correct.
Step-by-step explanation:
Let the two fractions are q/r and s/r.
Here, the denominator is same for both the fractions.
So, as we add them, add the numerators and the denominators remains same.

For example

So, Hamdan is correct.
The awnser is 156 so yeah
Y=4x-3 is the red line
Y=3x+7 is the blue line