53/63 as a percentage is 84.13%. This fraction is a little over four‑fifths, so the number looks close to 80‑plus percent when you write it as a percent.
When you see the fraction 53/63, think of it as a part of a whole that’s almost complete. It tells you that out of 63 equal pieces, 53 are taken, which is a strong majority.
In everyday use, you could say something like “the test score was 84.13%,” or “the project is about 84.13% finished.” The percentage makes it easy to compare with other numbers that are also expressed as percentages.