15/80 = 18.75%
A value of 15/80, or 18.75%, might describe 15 students attending an event out of 80 invited. It could also represent a portion of a survey group, inventory supply, or seats in a stadium section.
You can picture 15/80 as just under one-fifth of the whole, since one-fifth is 20%. Imagine dividing a group into five equal parts and shading almost one full part.
A common mistake is to round 18.75% to 20% and then treat the estimate as exact. Another point of confusion is that 15/80 can be simplified to 3/16, but both fractions still represent the same amount.
