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: 15



Work Step by Step

We are given the numbers 4 and 10. We can find use the prime factorization of both numbers to find their LCM. $8=2\times2\times2$ $10=2\times5$ Therefore, the $LCM=(2\times2\times2)\times(5)=40$.
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