To divide by a fraction, multiply by its reciprocal.

Factor out of .

Factor out of .

Cancel the common factor.

Rewrite the expression.

Factor out of .

Factor out of .

Cancel the common factor.

Rewrite the expression.

Multiply and .

Multiply by .

Multiply by .

Divide ((8pi)/(15q))÷((20pi^2)/(9q^3))