15/18 as a percentage is 83.33%. This number comes from turning the fraction into a more familiar form that’s easy to compare with other values.
The fraction 15/18 can also be reduced to 5/6, which shows it’s a large part of a whole. When you think of 5 out of 6 pieces, you can picture it as almost the whole thing, which matches the high percentage.
In everyday use, saying 83.33% is quicker than writing the fraction. Whether you’re looking at test scores, discounts, or any situation that uses parts of a whole, this percentage tells you the same story as 15/18.
