## Basic College Mathematics (9th Edition)

$\frac{4}{5}$
We can write the given ratio as a fraction and then simplify in lowest terms. $\frac{12eggs}{15eggs}$ Since both the denominator and numerator have the same unit, we can divide out the common unit. $\frac{12}{15}=\frac{12\div3}{15\div3}=\frac{4}{5}$