21/84 as a percentage is 25.00%. This means that the fraction represents one quarter of a whole. The value is rounded to two decimal places for easy reading.
The fraction 21/84 can be simplified by dividing both the numerator and the denominator by 21, which gives 1/4. Seeing it as 1 out of 4 equal parts helps you understand why the percentage is a clean 25%.
In everyday terms, if you had 84 pieces of something and you took 21 of them, you would have taken exactly one‑quarter of the total. That same portion is expressed as 25.00% of the whole.
