# Chapter 6 - Section 6.2 - Proportions - Exercise Set - Page 427: 24

False

#### Work Step by Step

To determine if a proportion is true, we have to find if the cross products are equal. The cross products of $\frac{a}{b}=\frac{c}{d}$ are $a \cdot d$ and $b \cdot c$. $\frac{2}{3}*\frac{3}{10} = \frac{1}{5}, \frac{1}{7}*\frac{8}{5} = \frac{8}{35}, \frac{1}{5} \neq \frac{8}{35} \rightarrow$ false

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