# Math Help - Expression of an Equation

1. ## Expression of an Equation

Just a quick question. Is it correct to say that: $\frac{45 - (2/3)(r^2)}{r}$ = $\frac{45 - 3r^2}{2r}$

2. ## Re: Expression of an Equation

Originally Posted by GrigOrig99
Just a quick question. Is it correct to say that: $\frac{45 - (2/3)(r^2)}{r}$ = $\frac{45 - 3r^2}{2r}$
no, more like ...

$\frac{45 - (2/3)(r^2)}{r} \cdot \frac{3}{3} = \frac{135 - 2r^2}{3r}$

Ok, ty.