91/99 as a percentage is 91.92%. This value shows how close the fraction is to a whole, falling just a little short of 100 %.
The fraction 91/99 can be thought of as taking 91 parts out of a possible 99, which is why it translates to a high percentage. In everyday terms, it’s almost the same as saying “about 92 out of every 100.”
When you see this percentage, you know the original fraction is very close to one whole unit. It’s a handy way to compare the fraction with other numbers that are expressed in percent form.