40/100 = 40%
A fraction like 40/100, or 40%, can show up in everyday life when 40 out of 100 people choose something, a sale takes 40% off, or a phone battery is partly charged. It is also common in surveys, test scores, weather reports, and statistics.
To picture 40%, imagine a grid with 100 equal squares and shade 40 of them. You can also estimate it as a little less than half, since half is 50%, or about two out of every five equal parts.
A common mistake is thinking 40% means 40 percentage points in every situation. For example, a 40% discount and a price reduced by 40 points are not the same thing, because percentages describe portions of an original amount.
