Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 11 - Rational Expressions and Functions - 11-4 Adding and Subtracting Rational Expressions - Practice and Problem-Solving Exercises: 18

Answer

18

Work Step by Step

To find the LCD, or the Least Common Multiple,we must write out each as products of prime factors. $6 = 2 \times 3 $ $9 = 3 \times 3$ The Least Common Multiple, or LCD, then is $2\times 3\times 3= 18$
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