72/80 as a percentage is 90.00%. This shows that the fraction is very close to a whole, just a little short of 1. When you see 90.00%, it means that 72 out of every 80 parts are present.
The fraction 72/80 can be simplified to 9/10, which is a common way to think about it. Both forms tell you the same thing: nine parts out of ten are included. This is why the percentage looks so neat and round.
In everyday use, you might see 90.00% on a test score, a discount, or a progress bar. It’s an easy number to understand—almost all of the total, but not quite 100%.
