52/81 as a percentage is 64.20%. This value comes from turning the fraction into a number out of one hundred and rounding it to two decimal places.
The fraction 52/81 is a proper fraction, meaning the numerator is smaller than the denominator. It represents a little more than half of a whole, which matches the percentage being a little over 50%.
When you need to compare this fraction to other numbers, using the percentage 64.20% makes it easy to see how large it is at a glance. It’s a handy way to communicate the size of 52 parts out of 81 parts in everyday terms.