Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 10 - Section 10.5 - Rationalizing Numerators and Denominators of Radical Expressions - Exercise Set - Page 719: 86

Answer

$\sqrt 3$

Work Step by Step

The fraction that must be rationalized is $\frac{5}{\sqrt 27}$. If you multiply the denominator and the numerator by $\sqrt 3$ the fraction will become $\frac{5\sqrt 3}{9}$. This way you have got rid of the square root in the denominator.
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