The fraction 20/21 is equal to 95.24% when expressed as a percentage. This means that if you have 20 parts out of a total of 21 parts, you've got about 95% of the whole thing. It's pretty close to being complete, with just a tiny bit missing.
To put it in perspective, imagine a pizza cut into 21 slices. If you eat 20 of those slices, you've consumed 20/21 of the pizza, which is the same as 95.24% of it. You'd be pretty full after eating that much! This fraction is useful in various situations where you need to express a large portion of something, but not quite the whole amount.
