Question

помогите пожалуйста. сократите дробь​

Answer 1

$\frac{15y^5}{25y^3}=\frac{3y^2}{5}\\\\\frac{5x+8y}{25x^2-84y^2}=\frac{5x+8y}{(5x-8y)(5x+8y)}=\frac{1}{5x-8y}\\\\\frac{t^2-12t+36}{t-6}=\frac{(t-6)^2}{t-6}=t-6$