Question

simplify this problem

Answer 1

There lies your solution!

Answer 2

(a^4*b^2 + a^2*b^4)/(a*b)^3

= a^2*b^2*[a^2 + b^2]/a^3*b^3
=[a^2 + b^2]/(a*b)
S/G = [a^2 + b^2]/(a*b)
Hope it helps.