27/120 = 22.5%
A value like 27/120, or 22.5%, can show up when 27 out of 120 people choose a certain option in a survey. It could also describe a little less than one-quarter of a group, such as students who ride the bus or customers who prefer a specific product.
To picture 22.5% quickly, think of a quarter as 25% and notice that this amount is just slightly smaller. On a group of 120 items, imagine dividing them into four equal groups of 30, then taking away about 3 from one group to get 27.
A common mistake is treating 22.5% as if it were 22% or 25%, especially when estimating. It is close to one-quarter, but it is not exactly one-quarter, so the difference can matter when the total group is large.
