Question

Сократите дробь пжл)

Answer 1

а)$frac{75b^5c^3}{50b^4c^4}=frac{3b}{2c}$
б)$frac{2b}{b^2-9b}=frac{2b}{b*(b-9)}=frac{2}{b-9}$
в)$frac{7x-7y}{x^2-y^2}=frac{7*(x-y)}{(x-y)*(x+y)}=frac{7}{x+y}$