Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 3 - Adding and Subtracting Fractions - Summary Exercises - Operations with Fractions - Page 236: 41



Work Step by Step

In order to rewrite $\frac{3}{7}$ with a denominator of 28, we must multiply both the numerator and the denominator of the original fraction by 4. $\frac{3}{7}=\frac{3\times4}{7\times4}=\frac{12}{28}$
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