The fraction 81/100 is equal to 81.00% when expressed as a percentage. This means that if you have 81 out of 100 parts of something, you have 81 percent of the whole. It's a common fraction that comes up in various situations, like test scores or statistics.
In everyday life, you might encounter 81/100 or 81% in different contexts. For example, if you got 81 questions right out of 100 on a quiz, you'd have scored 81%. Or if 81 out of 100 people prefer a certain product, that's 81% of the group. This fraction and percentage are useful for comparing parts to wholes and understanding proportions in many areas.