74/80 as a percentage is 92.50%. This means the fraction is just a little under one whole, and when you write it as a percent it shows how close it is to 100%.
The fraction 74/80 can be simplified to 37/40, but the percentage stays the same. Seeing it as 92.50% makes it easy to compare with other numbers that are already in percent form, like test scores or discounts.
In everyday use, you might round the percent to 93% for a quick estimate, but the exact value is 92.50%. Knowing this helps you understand how much of a whole 74 out of 80 really is.
