Упростить: (x^2/y^3+x/y^2):(y^2/x^2+y/x)

Question

Упростить:
(x^2/y^3+x/y^2):(y^2/x^2+y/x)

Answer 1

= ((x^2+ x*y)/y^3)/((y^2+ xy)/x^2) = 
= (x^4+ x^3*y)/(y^5+ y^4*x)