372/1240 = 30%
A fraction like 372/1240, or 30%, can show up in everyday life as a discount, a survey result, or part of a group. For example, if 30% of students in a school ride the bus, that means nearly one out of every three students does.
To picture 30% quickly, imagine a group divided into ten equal parts, with three parts shaded. It is a little less than one-third, so you can estimate it as about 3 out of every 10 items.
A common mistake is thinking that 30% means 30 whole items, no matter how large the group is. The actual number depends on the total, so 30% of 100 is very different from 30% of 1,000.
