The fraction 15/45 is equal to 33.33% when converted to a percentage. This percentage is rounded to the nearest two decimal places for simplicity. The fraction represents a part-to-whole relationship, where 15 is the part and 45 is the whole.
In everyday situations, this fraction and percentage can be useful for understanding proportions. For example, if 15 out of 45 students in a class prefer pizza for lunch, you could say that 33.33% of the class likes pizza. This makes it easier to compare preferences across different group sizes or to quickly grasp the relative popularity of pizza among the students.