65/80 as a percentage is 81.25%. This number tells you how much of a whole the fraction represents when expressed in a way that’s easy to compare with other values.
The fraction 65/80 can also be simplified to 13/16, which still equals the same percentage. Seeing it as 13 out of 16 parts helps you understand the size of the portion without doing any extra math.
In everyday situations, a result of 81.25% might represent a test score, a discount, or a completion rate. It’s a clear way to see that the value is a little over four‑fifths of the whole.