22/81 as a percentage is 27.16%. This value tells you how much of a whole the fraction represents when you look at it in terms of hundredths.
The fraction 22/81 is a simple way to write a part of a whole using two whole numbers. It can't be reduced any further, so it stays as 22 over 81. When you see it in everyday situations, it might represent things like 22 out of 81 students who passed a test.
Seeing the same amount as a percentage makes it easier to compare with other numbers that are already in percent form. For example, a score of 27.16% shows that the fraction is just over a quarter of the total.
In short, whether you use 22/81 or 27.16%, you are describing the same portion of a whole, just in two different formats that are handy in different contexts.
