97/98 as a percentage is 98.98%. This number shows how close the fraction is to a whole, since 100% would be a perfect 1.
The fraction 97/98 is just one part short of a full set of 98 parts. In everyday terms, if you had 98 pieces of something and you only missed one, you would have about 99% of the whole. That’s why the percentage is so high.
Because the value is so near to 100%, it’s useful when you want to describe something that is almost complete, like a project that is nearly finished or a test score that’s just a point off perfect. The simple conversion makes it easy to compare with other percentages.