2/20 expressed as a percentage is 10.00%. This simple fraction shows how a small part of a whole can be easily understood when turned into a percent.
The fraction 2/20 can also be reduced to 1/10, which means one out of ten equal parts. Seeing it as 10.00% makes it clear that it represents one‑tenth of any total amount.
In everyday use, you might see 10.00% on a sales tag, in a test score, or when calculating interest. Knowing the percent quickly tells you the proportion without having to think about the original fraction.