The fraction 21/53 is equal to 39.62% when converted to a percentage and rounded to two decimal places. This means that if you had 53 items and selected 21 of them, you'd be choosing about 40% of the total. It's a bit less than half, but more than a third of the whole amount.
In everyday situations, you might come across this fraction or percentage when dealing with things like test scores, survey results, or even cooking measurements. For example, if 21 out of 53 people in a class passed a difficult exam, you could say that 39.62% of the students succeeded. This percentage gives a clearer picture of the proportion than the fraction alone, making it easier to understand at a glance.