20/100 = 20%
The fraction 20/100, or 20%, shows up in everyday life when something is discounted, graded, or measured. For example, a store might take 20% off a price, or a weather report might say there is a 20% chance of rain.
You can picture 20% as 20 shaded parts out of 100 equal parts, or about one-fifth of a whole. A quick estimate is to imagine splitting something into five equal sections and focusing on one section.
A common mistake is thinking 20% means 20 points rather than 20 parts out of 100. It also does not mean that 20% of every amount is the same number, since the actual amount depends on the whole.
