Move to the denominator using the negative exponent rule .

Move .

Use the power rule to combine exponents.

Add and .

Move to the numerator using the negative exponent rule .

Move .

Use the power rule to combine exponents.

Subtract from .

Factor out of .

Cancel the common factors.

Factor out of .

Cancel the common factor.

Rewrite the expression.

Move the negative in front of the fraction.

Simplify (8x^-3y^-1)/(-2x^6y^-4)