simplify the expression using rational exponents

Question

(27x^−1 ⋅ y^−1)divided by (x^2 ⋅ y^3)1/3

Answer 1

27 x^(-1 - 2/3) y^(-1 - 3/3)
= 27 x^(-4/3) y^(-2)
= 27 / x^(4/3)y^2