Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 7 - Section 7.3 - Adding and Subtracting Rational Expressions with the Same Denominator and Least Common Denominator - Exercise Set: 62



Work Step by Step

$\frac{7}{30}$+$\frac{3}{18}$=$\frac{7*3}{30*3}$+$\frac{3*5}{18*5}$= $\frac{21}{90}$+$\frac{15}{90}$=$\frac{21+15}{90}$=$\frac{36}{90}$=$\frac{36\div18}{90\div18}$=$\frac{2}{5}$
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