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: 82



Work Step by Step

$\frac{3}{10} + \frac{2}{15}$ the least common denominator for the denominators 10 and 15 is 30. To obtain denominators of 30, multiply the numerator and denominator of the first fraction by 3 and second fraction by 2 $\frac{3}{10} + \frac{2}{15}$ = $\frac{3*3}{10*3} + \frac{2*2}{15*2}$ $\frac{9}{30} + \frac{4}{30}$ Add the numerators and put this sum over the least common denominator. $\frac{9+4}{30}$ = $\frac{13}{30}$
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