Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 1 - Introduction to Algebraic Expressions - 1.3 Fraction Notation - 1.3 Exercise Set - Page 27: 85

Answer

When the denominators are the same.

Work Step by Step

When the denominators are the same addition of two fractions requires only that you add the numerators. Multiplying the same 2 fractions would be more complex because you would have to multiply the numerators and multiply the denominators.
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