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: 57


LCD is 150.

Work Step by Step

To find the least common denominator factor each denominator then multiply each factor the greatest number of times it occurs in either number. $25=\underline5\times\underline5$ $15=\underline3\times5$ $6=\underline2\times3$ $LCD=5\times5\times3\times2=25\times6=150$
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