What is 11/20 as a percentage? 55.00%. The fraction 11/20 represents a little more than half of a whole, and when we write it as a percent it comes out to exactly 55.00%.
In everyday terms, if you have 20 equal parts of something and you take 11 of those parts, you have taken just over half. This is why the percent looks close to 50 %, but a little higher because you have two extra parts beyond the exact half.
Knowing the percent makes it easy to compare with other numbers. For example, a 55 % score on a test is slightly better than a simple “half right” answer, showing a modest edge over the midpoint.