Example

Simplifying 30xy35xy\frac{30xy^3}{5xy}

To simplify the rational expression 30xy35xy\frac{30xy^3}{5xy}, divide out the common factors shared by the numerator and the denominator. The numerical coefficients 3030 and 55 share a common factor of 55, leaving 66 in the numerator. The variables xx cancel out completely, and dividing y3y^3 by yy leaves y2y^2. Thus, the simplified expression is 6y26y^2.

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Updated 2026-04-29

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Ch.5 Polynomials and Polynomial Functions - Intermediate Algebra @ OpenStax

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