54/81 as a percentage is 66.67%. This value tells you how much of a whole the fraction represents when you look at it on a scale of 100.
The fraction 54/81 can be reduced by dividing both the numerator and the denominator by 27, giving you 2/3. Seeing it as two parts out of three helps you understand why the percentage is well over half.
When you think of 66.67%, picture two slices out of three in a pie chart. It’s a quick way to see that the fraction is larger than 50% but not quite 75%.
Using percentages like this makes it easy to compare different fractions or amounts in everyday situations, such as grades, discounts, or statistics.