Basic College Mathematics (10th Edition)

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

Chapter 5 - Ratio and Proportion - 5.3 Proportions - 5.3 Exercises - Page 350: 19

Answer

She did not divide the numerator and denominator by the same number.

Work Step by Step

To properly equate fractions, the numerator and denominator cannot be divided by different numbers. The fraction $\frac{49}{81}$ is already in the most simplified form possible.
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