15/55 as a percentage is 27.27%. This number tells you how much of a whole 15 parts out of 55 represent when you look at it in terms of 100. It’s a quick way to see the size of the fraction compared to a full set.
The fraction 15/55 can also be simplified. Dividing both the top and bottom by 5 gives 3/11. Even after simplifying, the percentage stays the same because the value of the fraction hasn't changed—just the numbers look smaller.
When you see 27.27% on a chart or in a report, you know it means roughly a little more than a quarter of the total. It’s useful for comparing parts of different groups, especially when the groups are not the same size.
Remember, percentages are just another way to talk about fractions. Saying 27.27% is often clearer for people who think in terms of “out of 100” rather than “out of 55”.