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