20/28 as a percentage is 71.43%. This value tells you how much of a whole the fraction represents when you think in terms of hundredths. It’s a quick way to see the size of the fraction in everyday language.
If you reduce 20/28, you get the simpler fraction 5/7. That reduced form makes it easier to compare with other common fractions, like 1/2 (50%) or 3/4 (75%). Knowing that 5/7 is a little less than three‑quarters helps you understand why the percentage sits just a bit below 75%.
In real life, you might see this percentage when a test score is 20 correct answers out of 28 questions, or when a recipe uses 20 parts of an ingredient in a mix of 28 parts total. Seeing 71.43% gives a clear picture of the proportion without needing to work with the fraction directly.