21/53 as a percentage is 39.62%. This value tells you how much of a whole the fraction represents when it is expressed in hundredths.
The fraction 21/53 cannot be simplified further because 21 and 53 share no common factors other than 1. It is a proper fraction, meaning the numerator is smaller than the denominator, so the result is always less than 1 (or 100% when converted).
In everyday situations, you might see this percentage used to compare parts of a group, such as 21 out of 53 students who passed a test. Rounding to two decimal places makes the number easy to read and work with, while still keeping it accurate enough for most practical needs.
