Answer
Use the LCM.
Work Step by Step
The student should use the least common multiple instead. After all, because the student simply multiplies the terms, he may have to do more work simplifying later in the problem.
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: 51
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