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: 90



Work Step by Step

$3\frac{2}{3} - 2\frac{1}{2}$ Convert mixed fractions into improper fractions $\frac{11}{3} - \frac{5}{2}$ The least common denominator for the denominators 3 and 2 is 6. To obtain denominators of 6, multiply the numerator and denominator of the first fraction by 2 and second fraction by 3 $\frac{11}{3} - \frac{5}{2}$ = $\frac{11*2}{3*2} - \frac{5*3}{2*3}$ $\frac{22}{6} - \frac{15}{6}$ Calculate difference of the numerators and put this difference over the least common denominator. $\frac{22-15}{6}$ = $\frac{7}{6}$
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