## Basic College Mathematics (9th Edition)

Ratio of Orca whale’s length to whale shark’s length = $\frac{3}{4}$
We need to find the Ratio of Orca whale’s length to whale shark’s length. i.e. $\frac{Orca whale’s length}{whale shark’s length}$ = $\frac{30 ft}{40 ft}$ = $\frac{30}{40}$ (As units were same in numerator and denominator) = $\frac{30\div10}{40\div10}$ = $\frac{3}{4}$