12/25 as a percentage is 48.00%. This value is the result of converting the fraction into a percent and rounding to two decimal places.
The fraction 12/25 can be thought of as 12 parts out of 25 equal parts. When you look at it in terms of a whole, it represents just under half of the total.
In everyday use, 48.00% might show up in things like test scores, discounts, or statistics, giving a clear picture of a portion of a whole.