40/45 as a percentage is 88.89%. This is the rounded value you get when you look at the fraction in terms of a whole.
The fraction 40/45 can be simplified to 8/9, which shows it’s close to 1 but not quite there. Because it’s a little less than a whole, its percentage is just under 100 %.
Knowing that 40/45 equals 88.89% helps when you compare parts of a whole, like grades, discounts, or statistics. It’s a quick way to see how large the part is relative to the total.
