Answer
$\frac{r}{24}$
Work Step by Step
We rewrite the given ratio as a fraction: $\frac{\frac{1}{4}r^2}{6r}$
Next, we find a common factor that is in both the numerator and the denominator, and factor it out: $\frac{0.25r(r)}{0.25r(24)}$
When you divide any number by itself, you get $1$. Therefore, we can cancel out the common factor. This leaves us with $\frac{r}{24}$.
