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Course: Precalculus > Unit 4
Lesson 1: Reducing rational expressions to lowest termsReducing rational expressions to lowest terms
Learn how to simplify rational expressions, which are fractions with variable expressions in the numerator and denominator. This video also shows how to factor the expressions and cancel out common factors, just like with rational numbers. Don't forget to exclude values of x that would make the denominator zero, since those would make the expression undefined. Created by Sal Khan and CK-12 Foundation.
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