Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 1 - Section 1.2 - Fractions in Algebra - Exercise Set - Page 29: 83



Work Step by Step

$\frac{11}{18} - \frac{2}{9}$ the least common denominator for the denominators 18 and 9 is 18. To obtain denominators of 18, multiply the numerator and denominator of the second fraction by 2 $\frac{11}{18} - \frac{2}{9}$ = $\frac{11}{18} - \frac{2*2}{9*2}$ $\frac{11}{18} - \frac{4}{18}$ Calculate difference of the numerators and put this difference over the least common denominator. $\frac{11-4}{18}$ = $\frac{7}{18}$
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