Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 4 - Section 4.2 - Factors and Simplest Form - Vocabulary, Readiness & Video Check - Page 234: 6


cross products

Work Step by Step

When fractions are equivalent, the cross products are equivalent. The term cross product is derived from the X shape of the numbers being multiplied. $\frac{a}{b}=\frac{x}{y}$ $\frac{a}{b}\nearrow\!\!\!\!\!\!\searrow\frac{x}{y}$ $\Rightarrow ay=bx$
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