The fraction 18/20 is equal to 90.00% when converted to a percentage and rounded to two decimal places. This means that 18 out of 20 parts represent 90% of the whole. It's a pretty high percentage, showing that a large portion of the total is being represented.
In everyday life, you might come across this fraction in various situations. For example, if you answered 18 out of 20 questions correctly on a test, you'd have scored 90%. Or if 18 out of 20 people in a group agreed on something, that would be 90% agreement. This fraction and percentage are often used to express high levels of completion, accuracy, or agreement in different contexts.