Question

what is a negative 3 cubed written as a fraction

Answer 1

When you have an exponent that is negative, it means to take reciprocal of the fraction then take it the power.

Some examples:

5^-2 = 1/5^2 = 1/25
10^-3 = 1/10^-3 = 1/1000

If this answer wasn't clear enough, just comment below or DM me a message!

Answer 2

The answer will be 1/a^3. Hope it help!