The fraction 21/90 expressed as a percentage is 23.33%. This number tells you how much of a whole 21 parts out of 90 represent in a familiar 100‑point scale.
When you look at the fraction itself, 21 out of 90 can be simplified to 7/30. That means for every 30 equal parts, 7 of them are taken. It’s a small portion, just under a quarter of the whole.
Seeing it as 23.33% makes it easy to compare with other percentages, like a test score or a discount. You can quickly tell that it is a little less than one‑fourth of the total.
In everyday language, you might say something is “about twenty‑three percent” of something else. That’s the same idea as the fraction 21/90 turned into a percentage.
