3/81 as a percentage is 3.70%. This small number shows how a tiny part of a whole can be expressed in a way that's easy to compare with other percentages.
The fraction 3/81 can be simplified to 1/27, which is still a small slice of a whole. Even though the numbers look different, the value stays the same, and the percentage tells us that it represents just under four percent of the total.
In everyday situations, you might see this kind of percentage when looking at interest rates, test scores, or the amount of a ingredient in a recipe. Knowing that 3/81 equals about 3.70% helps you quickly gauge how big or small a portion really is.