21/24 expressed as a percentage is 87.50%. This means that the fraction is just a little under nine‑tenths of a whole.
The fraction 21/24 can be reduced to 7/8, which is a common fraction you might see in recipes or measurements. Both 7/8 and 21/24 represent the same part of a whole, just written in different ways.
In everyday situations, thinking of 87.50% can help you quickly judge how much of something you have. For example, if you scored 21 out of 24 points on a quiz, you earned 87.50% of the possible marks.
