Question

how to simplify fractional numbers with negative powers?

Answer 1

when there is a negative power, remember that its always 1 by the given fractional no.
for ex (a/b)^-1 = 1/(a/b)
so the no. gets reversed i.e. b/a
now you can easily solve the given question.

hope it helps...n plz follow for more help

Answer 2

If you have to simplify fractional numbers with negative powers, you have to just reciprocal the number and make the power positive.

For example, $\frac{5 ^{-2} }{18}$= 18/5 to the power 2