42/105 = 40%
A value like 42/105, or 40%, can show up in everyday situations such as test scores, survey results, or a store’s discount rate. For example, if 42 out of 105 people choose one option in a survey, that choice has the support of about two out of every five people.
To picture it quickly, imagine a group divided into five equal parts. This value is close to two of those five parts, so you can estimate it as a little less than half.
A common mistake is to think 42/105 is close to 42% because the numerator is 42. The denominator matters too, since it tells you the total number of parts being considered.
