41/45 as a percentage is 91.11%. This number shows how close the fraction is to a full whole, with just a little bit missing.
The fraction 41/45 can be thought of as 41 parts out of 45 equal parts. Since it is only four parts short of a complete set, the value is pretty high, which is why the percentage is well above 90%.
When you see 91.11% on a chart or in a report, you know it represents the same amount as 41/45. It’s a handy way to compare this fraction with other percentages or to quickly gauge how large the portion is.