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# Rational Expressions: Homework Help Chapter Exam

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## Multiplying and Dividing Rational Expressions

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## Main Topics

3. Rewrite each rational expression with the LCD as the denominator. 4. Add/subtract the numerators.

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Adding and subtracting rational expressions with like denominators is similar to adding and subtracting fractions with like denominators. It is a three-step process: first add the numerators, then simplify the numerator, then simplify the result by factoring.