Fractions and ratios can be equal.

external image ratio1.jpg
external image ratio1.jpg



For example, the ratio of the shaded part to the unshaded part is 2:3, and the number of shaded parts as a fraction of the unshaded parts is 2/3.


DSC00030.JPG
DSC00030.JPG


The number of boys to the number of girls is 1:3
The fraction of the number of boys to the number of girls is 1/3.