The fraction 23/45 is equal to 51.11% when converted to a percentage. This means that if you had 45 equal parts of something and took 23 of those parts, you'd have about 51% of the whole. It's a bit more than half, but not quite as much as 52%.
In everyday life, you might see this fraction or percentage used in various situations. For example, if 23 out of 45 students in a class passed a test, you could say that 51.11% of the class succeeded. Or if a sports team won 23 games out of a 45-game season, their winning percentage would be 51.11%. This percentage is useful for comparing different fractions or understanding parts of a whole more easily.