Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 3 - Adding and Subtracting Fractions - 3.2 Least Common Multiples - 3.2 Exercises: 14

Answer

20

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. $4=2\times2$ $10=2\times5$ Therefore, the $LCM=(2\times2)\times(5)=20$.
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