15/49 as a percentage is 30.61%. This number shows how much of a whole 15 parts out of 49 represent when we look at it in terms of 100.
The fraction 15/49 can be thought of as a part of a larger group. When we compare it to a whole (100%), it turns into a little more than three‑tenths of the whole. That’s why the percentage is just over 30%.
Knowing the percentage makes it easier to compare with other values that are already in percent form. It’s a quick way to see that 15 out of 49 is a little less than one third of the whole.