The fraction 21/36 is equal to 58.33% when converted to a percentage and rounded to two decimal places. This means that if you had 36 items and took 21 of them, you'd have about 58% of the total. It's a bit more than half, but not quite as much as three-fifths.
In everyday life, you might see this fraction pop up in various situations. For example, if 21 out of 36 students in a class passed a test, you could say that 58.33% of the class succeeded. Or if you completed 21 pages of a 36-page book, you'd be about 58% done with your reading. This percentage is useful for quickly understanding how much of something you have compared to the whole.