15/45 as a percentage is 33.33%. This number tells you that the fraction is about one‑third of a whole. When you see 33.33% on a chart or a report, you can think of it as the same size as 15 parts out of 45 equal parts.
The fraction 15/45 can be simplified by dividing both the top and bottom numbers by 15, which gives you 1/3. Whether you write it as 1/3, 15/45, or 33.33%, they all represent the same proportion. It’s useful to recognize that they are interchangeable depending on what format you need.
In everyday situations, you might use this percentage to describe things like a test score, a portion of a budget, or a slice of a pizza. Knowing that 33.33% is the same as one‑third helps you quickly compare it to other percentages and fractions you encounter.