12/52 as a percentage is 23.08%. This tells you that the fraction represents a little more than one‑fifth of a whole.
The fraction 12/52 can be thought of as 12 parts out of a total of 52 equal parts. In everyday terms, that might be 12 cards drawn from a full deck of 52, or 12 items taken from a group of 52 items.
Seeing the same value as a percentage, 23.08%, makes it easier to compare with other percentages, like sales growth or test scores. Percentages give a quick sense of proportion without needing to work with the original denominator.