64/90 as a percentage is 71.11%. This is the rounded value you get when you compare the fraction to a whole.
The fraction 64/90 can be simplified to 32/45, but the percentage stays the same. It tells you that the part (64) makes up a little more than seven‑tenths of the whole (90).
In everyday life you might see this kind of number when looking at scores, test results, or any situation where you want to know what portion of a total you have. Saying “71.11%” is often clearer than using the fraction.
Remember, whenever you need a quick sense of size, converting a fraction to a percentage like this helps you compare it to other numbers easily.
