Question

помогите пожалуйста упростить выражение!!

Answer 1

\\\\\\\\\\\\\\\\\\\\\\\\\\\

Answer 2

$(\frac{c}{a-c}-\frac{c}{a})*\frac{a^2}{c^2}$
$(\frac{ca}{(a-c)a}-\frac{c(a-c)}{(a-c)a})*\frac{a^2}{c^2}$
$\frac{ca-ca+c^2)}{(a-c)a}*\frac{a^2}{c^2}$
$\frac{c^2*a^2}{a(a-c)*c^2}$
$\frac{a}{a-c}$