Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 3 - Adding and Subtracting Fractions - 3.2 Least Common Multiples - 3.2 Exercises - Page 211: 9

Answer

36

Work Step by Step

Multiples of 9: 9, 18, 27, 36, 45 In order to find the LCM of 4 and 9, we must find the first multiple of 9 that is also divisible by 4. 9, 18, and 27 are not divisible by 4. $36\div4=9$ Therefore, 36 is the LCM of 4 and 9.
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