#### Answer

$\frac{3}{8}$

#### Work Step by Step

We can write the given ratio as a fraction and then simplify in lowest terms.
Since 1 foot has 12 inches, we can write 2 feet as $(2\times12)=24$ inches.
$\frac{9 inches}{24 inches}$
Since both the denominator and numerator have the same unit, we can divide out the common unit.
$\frac{9}{24}=\frac{9\div3}{24\div3}=\frac{3}{8}$