4/20 = 20%
A value like 4/20, or 20%, can show up in everyday life as a store discount, a survey result, or the chance of rain. For example, if one out of five classmates chooses a certain lunch, that’s about the same share.
To picture it quickly, imagine a group of five equal parts with one part shaded. You can also think of it as about one person in every five, or roughly two out of every ten.
A common mix-up is reading 20% as 20 out of 20, when it means 20 out of 100. It’s also easy to confuse the fraction 4/20 with 4/100, even though they represent different amounts.
