83/90 as a percentage is 92.22%. This number tells you that the fraction is very close to a whole, just a little under 100 %.
The fraction 83/90 can be thought of as 83 parts out of a total of 90 equal parts. Since the denominator is fairly large, each part is small, and getting 83 of them means you have most of the whole. In everyday terms, if you had 90 pieces of candy and ate 83, you'd have eaten about 92 % of them.
People often use this kind of percentage when they want to show how well something performed, like a test score or a completion rate. A result of 92.22% signals strong performance, just shy of a perfect score.
