Сократите дробь: 60) (x-y)^2/(x-y)(x+y)

60) $$\frac{(x-y)^2}{(x-y)(x+y)} = \frac{(x-y)(x-y)}{(x-y)(x+y)} = \frac{x-y}{x+y}$$

Ответ: $$\frac{x-y}{x+y}$$