33/45 as a percentage is 73.33%. This number tells you how much of a whole the fraction represents when you look at it on a scale of 100.
The fraction 33/45 can also be simplified to 11/15, which still gives the same percentage. Seeing the percentage makes it easier to compare with other values that are already expressed out of 100.
When you need a quick estimate, you can think of 73.33% as a little more than three‑quarters of a whole. That’s useful in everyday situations like budgeting, grading, or measuring progress.