15/18 as a percentage is 83.33%. This value tells you how much of a whole the fraction represents when you think of the whole as 100 parts.
The fraction 15/18 can be simplified to 5/6, which still gives the same percentage. Seeing it as 5 out of 6 parts helps you understand that it’s just a little less than a full whole.
In everyday use, you might round 83.33% to 83% for quick estimates, but the more precise figure is useful when exactness matters, such as in budgeting or grading.
