90/97 as a percentage is 92.78%. This value shows that the fraction is very close to a whole, just a little under 100 %.
The fraction 90/97 means you have 90 parts out of a total of 97 equal parts. Because the numerator is high compared to the denominator, the percentage is also high.
In everyday use, a result like 92.78% might appear on a test score, a survey result, or a performance rating. It tells the listener quickly that the result is excellent, well above the halfway point.
Remember that whenever you see a fraction with a large numerator and a slightly larger denominator, the percentage will be near the top of the scale, just like 90/97 gives 92.78%.