Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.

Published by Pearson

ISBN 10: 0-32184-874-8

ISBN 13: 978-0-32184-874-1

Chapter 6 - Rational Expressions and Equations - Review Exercises: Chapter 6 - Page 438: 50

Answer

For rational equations and complex rational expressions.

Work Step by Step

We use the least common multiple for rational equations as it cancels out all of the denominators to get rid of fractions. We use this for complex rational expressions because there are multiple denominators, so we need the least common multiple to either combine them or get rid of them.

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