66/67 as a percentage is 98.51%. This number shows how close the fraction is to a whole, since it is only a little less than 100 %.
The fraction 66/67 represents 66 parts out of 67 equal parts. Because the denominator is only one more than the numerator, the value is very high—just a tiny step away from a complete whole.
In everyday life, percentages like 98.51% can be useful for showing near‑complete success, high efficiency, or a very strong likelihood. It’s a quick way to see that something is almost perfect without dealing with complicated fractions.