The fraction 78/100 is equal to 78.00% when expressed as a percentage. This means that if you have 78 parts out of a total of 100, you're dealing with 78% of the whole. It's a common fraction that comes up in various everyday situations, from test scores to statistics.
You might encounter 78/100 or 78% in different contexts. For example, if you got 78 questions right out of 100 on a quiz, you'd have a score of 78%. Or if 78 out of 100 people prefer a certain product, that's a 78% approval rating. This fraction and its percentage equivalent are useful for understanding parts of a whole and making quick comparisons.