Let's take a look at the fraction 40/45. When you turn it into a percentage, you get 88.89%. This value is the rounded result to two decimal places.
The fraction 40/45 can be simplified to 8/9, which is a common way to see the same proportion in a simpler form. Both the fraction and the percentage tell us that the part is just under nine‑tenths of the whole.
Using 88.89% is handy when you need to compare this portion with other percentages, such as test scores or discount rates. It gives a clear, everyday number that’s easy to understand without having to work with fractions.