64/76 as a percentage is 84.21%. This rounded figure gives a quick way to understand how large the fraction is compared to a whole.
The fraction 64/76 can be simplified to 16/19, which still represents the same value. Whether you write it as a fraction or a percentage, it shows that the part is just a little over four‑fifths of the whole.
In everyday situations, using the percentage makes it easier to compare numbers. For example, if a test score is 64 out of 76 points, the result of 84.21% tells you immediately how well you did without doing any extra math.