How do you simplify 45/(10a-10) ?

Sep 22, 2016

$\frac{9}{2 \left(a - 1\right)}$

Explanation:

In algebraic fractions, check first if you can find factors.

$\frac{45}{10 a - 10}$

=$\frac{45}{10 \left(a - 1\right)} \text{ } \leftarrow$ cancel by 5

=${\cancel{45}}^{9} / \left({\cancel{10}}^{2} \left(a - 1\right)\right)$

=$\frac{9}{2 \left(a - 1\right)}$