9/40 = 22.5%
The fraction 9/40, or 22.5%, can show up in everyday situations like a sale discount, a survey result, or the portion of a class that prefers a certain activity. For example, 9 out of 40 students choosing soccer would mean just under one-quarter of the class.
To picture 9/40 quickly, think of a group divided into four equal parts, since one-quarter is 25%. This amount is a little less than one-quarter, by 2.5 percentage points, so it is close to but not quite 25%.
A common mistake is to round 22.5% to 20% or 25% without noticing that the difference may matter. It is also easy to confuse 9/40 with 40/9, which represents a much larger value.
