The fraction 15/54 is equal to 27.78% when converted to a percentage. This means that if you had 54 items and selected 15 of them, you'd have chosen about 28% of the total. It's a bit more than a quarter but not quite a third of the whole amount.
In everyday situations, you might come across this fraction or percentage in various contexts. For example, if 15 out of 54 students in a class got an A on a test, you could say that 27.78% of the class aced it. Or if a sports team won 15 games out of a 54-game season, their winning percentage would be 27.78%. This percentage gives us a quick and easy way to understand the proportion or part of a whole that 15/54 represents.