45/65 as a percentage is 69.23%. This number tells you how much of a whole the fraction represents when you look at it on a scale of 100.
The fraction 45/65 can be reduced by dividing both the numerator and the denominator by 5, giving the simpler form 9/13. Even in this reduced form, the value stays the same, so the percentage stays 69.23%.
In everyday situations, you can think of 69.23% as a little more than two‑thirds of a whole. It’s useful for quickly comparing parts of a group, such as when you have 45 out of 65 items and want to describe the share in a familiar way.