75/77 as a percentage is 97.40%. This value shows how close the fraction is to a whole, because 75 out of 77 parts is a very high proportion.
The fraction 75/77 is just two units shy of a full 1, which is why its percentage is so near 100%. In everyday terms, it means that for every 100 units, about 97.4 of them would be represented by this fraction.
Because the percentage is so high, 75/77 is useful when you need to describe something that is almost complete—like a project that is 97.40% finished or a test score that’s just a couple of points away from perfect.