9/20 = 45%
A value like 9/20, or 45%, can show up in everyday situations such as test scores, survey results, or a sale that applies to nearly half of a group. For example, if 9 out of 20 students prefer pizza, that means pizza is popular but not the choice of most students.
You can picture 9/20 as just a little less than one-half. A quick estimate is to compare it with 10/20, which would represent exactly half, and notice that 9/20 is one part short.
A common mistake is thinking 45% means more than half because the number 45 sounds large. Since half is 50%, 45% is actually slightly less than half.
