The fraction 18/20 is equal to 90.00%. This means that 18 out of every 20 parts represents ninety percent of the whole. It’s a quick way to see how large a portion the fraction covers.
In simplest form, 18/20 reduces to 9/10, which is a very common ratio. Whether you’re measuring progress, scoring a test, or splitting a bill, a 9‑to‑10 split shows you’re almost at the full amount.
Because the percentage is rounded to two decimal places, you get a clean 90.00% that’s easy to read and compare. This kind of rounding is useful in reports, charts, and everyday calculations where precision to the nearest hundredth is enough.
