Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 4 - Section 4.4 - Adding and Subtracting Like Fractions, Least Common Denominator, and Equivalent Fractions - Exercise Set - Page 263: 62


LCD is 360.

Work Step by Step

To find the least common denominator, factor each number. For each unique factor, identify the maximum number of times it occurs in any one of the factorizations and include it that many times when computing the LCD. $24=\underline2\times\underline2\times\underline2\times3$ $45=\underline3\times\underline3\times\underline5$ $LCD=2\times2\times2\times3\times3\times5=4\times6\times15=24\times15=360$
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