72/360 = 20%
A fraction like 72/360 can show up when 72 out of 360 people choose a certain option in a survey. It could also describe a 20% discount, a 20% chance, or about one-fifth of a group or amount.
To picture 72/360 quickly, think of a whole divided into five equal parts, with one part shaded. Since 20% is one-fifth, you can estimate it as a little less than a quarter, or about two out of every ten items.
A common mistake is thinking 20% means 20 items no matter how large the total is. The percentage stays the same, but the actual number it represents changes with the size of the whole.