21/77 as a percentage is 27.27%. This value tells you how much of a whole 21 parts out of 77 represent when you look at it as a part of 100.
The fraction 21/77 can be reduced to 3/11, which is a simpler way to see the same relationship. Both forms show the same size; the percentage just puts it on a scale of 100.
In everyday life, you might see this percentage when comparing scores, measurements, or parts of a budget. It helps you quickly understand the portion without dealing with the original denominator.
Remember, whenever you need to compare a part to a whole, turning the fraction into a percentage like 27.27% makes the information easy to read and share.
