21/52 as a percentage is 40.38%. This fraction is a little less than half, which makes it easy to picture in everyday situations—think of a pizza cut into 52 slices, and you take 21 of them. The rounded value gives a quick way to compare it with other numbers.
When you see 40.38% you know it represents the same portion as 21 out of 52. It’s useful for things like test scores, where you might get 21 correct answers out of 52 questions.
In practical terms, 40.38% tells you that just under two‑fifths of the whole is taken. If you imagine a chart divided into 100 parts, about 40 of those parts would be shaded.
Remember, percentages like this help turn fractions into a format that’s easy to read and compare across different contexts.
