Algebra: A Combined Approach (4th Edition)

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

Chapter 7 - Vocabulary Check - Page 552: 11


cross products

Work Step by Step

As $\frac{a}{b}$ = $\frac{c}{d}$, they are proportional to each other, we can multiply both sides by the LCD, $bd$, resulting in $ad = bc$. $ad$ and $bc$ are known as the $\underline{cross \space products}$ of the proportion and they are equal to each other.
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