58/64 as a percentage is 90.63%. This tells you how much of a whole the fraction represents when you think of the whole as 100 %.
The fraction 58/64 can be reduced to 29/32, which is still a large part of a whole. In everyday language, saying something is about 90 % full gives a quick sense of how much is left.
When you see a number like 90.63%, you know it’s just a little under a full 100 %. It’s a handy way to compare sizes, scores, or any situation where you want to express a part of a whole in a familiar format.