Question

Express with positive exponents.
x ^{-1}y ^{-2}/z ^{-3}

Answer 1

\[\frac{z^3}{x y^2} \]

Answer 2

x ^{-1}y ^{-2}/z ^{-3}
(1/x)(1/y^2)/(1/z^3)
z^3/xy^2

Answer 3

is it \[ \dfrac{x ^{-1}y ^{-2}}{z ^{-3}} \]

Answer 4

If that is the question, then it is \[\dfrac{z^3}{xy^2}\]