21/45 as a percentage is 46.67%. This value tells you how much of a whole the fraction represents when expressed in hundredths.
The fraction 21/45 can be simplified to 7/15, which still converts to the same percentage. Seeing it as a percent makes it easier to compare with other numbers that are already in percent form.
In everyday situations, you might use this percentage to describe parts of a budget, test scores, or any scenario where you need a quick sense of proportion. Remember, 46.67% means just under half of the total.
