=abSqrt[aSurd[a b^2, 3] ]/(a b^2 a^(-1/3) b^(1/3)=ab a^(1/2)a^(1/6) b^(1/3)/(a^(2/3) b^(7/3))=a a^(4/6) b^(1/3)/(a^(2/3) b^(4/3))=a^(2/3) b^(1/3) / (a^(2/3) b^(4/3))=a/b
