53/55 as a percentage is 96.36%. This number shows that the fraction is very close to a whole, just a little under 100 %. When you see a value like this, you know the part is almost the entire amount.
The fraction 53/55 can be thought of as 53 pieces out of a total of 55. In everyday situations, such a high ratio might represent something like a test score where you missed only a couple of questions, or a product that meets almost all of its specifications.
Because the percentage is rounded to two decimal places, you get a tidy 96.36% that’s easy to read and compare. It’s a handy way to see just how large the fraction is without dealing with the original denominator.