The fraction 18/90 expressed as a percentage is 20.00%. This value is rounded to two decimal places for clarity.
Since 18 and 90 share a common factor of 9, the fraction simplifies to 2/10, which is the same as 20 out of 100 parts. That makes it easy to understand why the percentage is exactly twenty percent.
In everyday life, 20 % can represent things like a discount on a purchase, a portion of a class that earned an A, or the part of a project that is completed. Knowing the percentage helps you compare sizes quickly without having to work with fractions.
