If necessary, use / for the fraction bar.
The diagram shows a green to pink ratio value of
![If necessary use for the fraction bar The diagram shows a green to pink ratio value of class=](https://us-static.z-dn.net/files/dd9/322d667b557289c723789c9f23c9c039.gif)
2/5
There are 2 units of green and 5 units of "pink," so the ratio is ...
... green/pink = 2/5