21/45 as a percentage is 46.67%. This is the rounded value you get when you express the fraction in percent form.
The fraction 21/45 can be reduced by dividing both numbers by 3, giving 7/15. Even in its simplest form, it still represents the same part of a whole.
In everyday situations, a value of 46.67% might describe a test score, a discount, or the portion of a project that’s finished. It’s a quick way to see how big a part the fraction is compared to the whole.
Remember, whether you write it as 21/45, 7/15, or 46.67%, the meaning stays the same—you’re just using different ways to show the same amount.
