Brown bats vary in length from 3 to 6 inches and have wing spans from 8 to 16 inches.
We can make two ratios using the given information
Ratio of a bat's wing span to the bat's body length
Wing span is 8 inches and body length is 3 inches
So ratio becomes 8 : 3
Wing span is 16 inches and body length is 6 inches
So ratio becomes 16 : 3
In these two ratios 8: 3 and 16: 6 , the simplest form is 8: 3