Ratio

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

The fraction of red apples to all the apples is \(\dfrac{3}{4}\).

The fraction of red apples to all apples is \(\dfrac{2}{4}\), which simplifies to \(\dfrac{1}{2}\) (half are red).

To find the number of apples corresponding to \(\dfrac{1}{2}\) of 4 apples:

• Draw the fraction:
• Count the apples in the colored part: there are 2 apples.