The fraction 45/80 is equal to 56.25% when converted to a percentage. This means that 45 out of 80 parts represent just over half of the total. It's a bit more than 50%, but not quite as much as 60%.
In everyday situations, you might come across this fraction or percentage in various contexts. For example, if 45 out of 80 students passed a test, you could say that 56.25% of the class succeeded. Or if you completed 45 pages of an 80-page book, you'd be 56.25% of the way through. This percentage is useful for understanding proportions and comparing different quantities.