63/66 as a percentage is 95.45%. This value shows how close the fraction is to a whole number, and the rounded figure makes it easy to read and compare.
The fraction 63/66 can be simplified to 21/22, which is still a large portion of a whole. Because the numerator is only a few units less than the denominator, the percentage ends up being very high, just under 100%.
In everyday situations, a result like 95.45% might represent a test score, a completion rate, or any measurement where the goal is to reach the full amount. It tells you that you’re almost at the maximum possible value.