Basic College Mathematics (9th Edition)

by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.

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 - Page 211: 16

Answer

Work Step by Step

We are given the numbers 12 and 20. We can find use the prime factorization of both numbers to find their LCM. $12=2\times2\times3$ $20=2\times2\times5$ Therefore, the $LCM=(2\times2\times3)\times(5)=60$.

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