The fraction 45/80 is equal to 56.25% when converted to a percentage. This means that if you had 80 equal parts of something and took 45 of those parts, you'd have 56.25% of the whole. It's a bit more than half, which makes sense since 45 is more than half of 80.
In everyday life, you might see this fraction or percentage used in various situations. For example, if 45 out of 80 students passed a test, you could say that 56.25% of the class passed. Or if you completed 45 out of 80 tasks on your to-do list, you'd be 56.25% done with your work. This percentage is useful for understanding how much of something you have compared to the total amount.