89/91 as a percentage is 97.80%. This fraction is very close to a whole, so its percent value reflects that near‑perfect score.
When you see 89 out of 91 on a test or a measurement, you can think of it as almost 98 percent. That makes it easy to compare with other results that are given in percentages.
In everyday language, saying “97.80%” sounds more familiar than “89/91,” but both describe the same level of achievement. It’s a handy way to communicate just how high the ratio is without needing to do any math yourself.