63/64 expressed as a percentage is 98.44%. This number tells you that the fraction is just a tiny bit less than a whole.
Because 98.44% is so close to 100%, the fraction 63/64 represents a value that is almost complete. In everyday terms, you can think of it as having 98 and a half pieces out of every 100.
You might see this kind of percentage when something is almost perfect, like a test score of 63 correct answers out of 64 questions. It shows a high level of achievement with only a small margin left.
In short, whenever you need a quick sense of how large 63/64 is, remember it’s about 98.44% of the whole.