Question

How do you simplify (3n^-2)/(nm^-3)?

Answer 1

`(3m^3)/n^3`

Explanation:

`(3n^-2)/(nm^-3)`
`=(3(1/n^2))/(n(1/m^3))`
`=(3/n^2)/(n/m^3)`
`=(3/n^2)*(m^3/n)`
`=(3m^3)/n^3`

Further reading:
http://www.mathsisfun.com/algebra/negative-exponents.html