20/28 as a percentage is 71.43%. This value tells you how much of a whole the fraction represents when you look at it on a scale of 100.
The fraction 20/28 can also be reduced to 5/7, which is a common way to see the same part of a whole in simpler terms. Whether you write it as 5/7 or 20/28, the portion stays the same, and it still equals about 71.43% of the whole.
Knowing this percentage is useful in everyday situations, like figuring out test scores, discounts, or any time you need to compare a part to a total. It gives a quick, clear picture of how large the part is relative to the whole.