# Stumped on an easy fraction problem

## Main Question or Discussion Point

Here is the fraction that I don't know how to combine and simplify, please help me out! Thanks! =]

$$\frac{5}{a} + \frac{4}{2a-6} + \frac {-4a}{a^{2}-9}$$

I found the common denominator I think: (x+3)(x-3) .. but how do you make {a} in that form?

cristo
Staff Emeritus
If I write it as $$\frac{5}{a}+\frac{2}{(a-3)}-\frac{4a}{(a+3)(a-3)}$$ does it help?

Last edited:
cristo
Staff Emeritus