37/40 as a percentage is 92.50%.
The fraction 37/40 means you have 37 parts out of a total of 40 equal parts. It is a little less than a whole, since 40 would be the full amount. In decimal form it is 0.925, which shows how close it is to 1.
Because 92.50% is close to 100%, this value often appears when something is almost complete, like a test score of 37 correct answers out of 40 questions, or a discount that leaves you with 92.5 % of the original price.
In everyday situations, using the percentage makes it easier to compare with other numbers. For example, saying a student scored 92.50% on a quiz instantly tells you they performed very well, without having to think about the original 40‑question total.