Ratios

A ratio is a comparison of two quantities. The ratio of \(\textcolor{colordef}{2}\) to \(\textcolor{colorprop}{3}\) can be expressed as the fraction \(\dfrac{\textcolor{colordef}{2}}{\textcolor{colorprop}{3}}\).

The ratio of red apples to all the apples is \(\dfrac{2}{4}\).

The ratio of red apples to all apples is \(\textcolor{colordef}{2}:\textcolor{olive}{4}\), which simplifies to \(\textcolor{colordef}{1}:\textcolor{olive}{2}\) (half are red).