9/80 = 11.25%
A value like 9/80, or 11.25%, can show up in everyday situations such as a store discount, a survey result, or the portion of students in a club. For example, if 9 out of 80 students bring lunch from home, that group makes up 11.25% of the students.
To picture 9/80 quickly, think of it as a little more than one-tenth, since 10% of 80 is 8. It is also close to 11%, but slightly higher, so estimating it as about one in nine people can help.
A common mistake is to round 11.25% down to 11% and treat the two values as exactly the same. Another point of confusion is thinking that 9/80 means 9.80, when the fraction actually means 9 parts out of 80 equal parts.
