The fraction 21/66 is equal to 31.82% when converted to a percentage and rounded to two decimal places. This percentage represents the portion of a whole that 21/66 represents. It's a bit less than one-third, which would be about 33.33%.
In everyday situations, you might encounter this fraction or percentage in various contexts. For example, if 21 out of 66 students in a class prefer pizza for lunch, you could say that 31.82% of the class likes pizza. Or if you completed 21 out of 66 tasks on your to-do list, you've finished 31.82% of your work. This fraction and its equivalent percentage can be useful for comparing parts to wholes in many real-world scenarios.