Question

How do you simplify `r^2/(2r^3)` and write it using only positive exponents?

Answer 1

`1/(2r)`

Explanation:

When dividing common variables the exponents are subtracted.

`r^2/(2r^3)`

Think of it like this now...

`1/(2r^(3-2))` [Always put a `1` if the variable is completely simplified]

`1/(2r)`