Question

Выполните сдожение дробей x/y(x-2y)+2/2y-x
СРОЧНО

Answer 1

$\frac{x}{y} \dfrac{x}{y(x-2y)}+\dfrac{2}{2y-x} = \dfrac{x}{y(x-2y)}-\dfrac{2}{x-2y} = \dfrac{x-2y}{y(x-2y)}=\boxed{\dfrac{1}{y} }$