The fraction 45/100 is equal to 45.00% when expressed as a percentage. This means that if you have 45 parts out of a total of 100, you're dealing with 45% of the whole. It's a common fraction that comes up in various everyday situations, from test scores to sales discounts.
You might encounter 45/100 or 45% in different contexts. For example, if you score 45 out of 100 on a test, you've achieved 45% of the total possible points. In a shopping scenario, a 45% discount would mean nearly half off the original price. This fraction and its percentage equivalent are useful for quickly understanding parts of a whole in many real-world applications.