Question

Решить $\frac{b}{a^2-ab} : \frac{a}{a-b} \cdot ab$

Answer 1

$\frac{b}{a^2-ab} : \frac{a}{a-b} \cdot ab = \frac{b}{a(a - b)}\cdot \frac{a - b}{a} \cdot ab = \frac{b^{2}}{ {a} }$