The fraction 21/68 is equal to 30.88% when converted to a percentage and rounded to two decimal places. This means that if you had 68 items and selected 21 of them, you'd be choosing about 31% of the total. It's a bit less than one-third, which would be 33.33%.
In everyday situations, you might come across this fraction or percentage when dealing with things like test scores, sales figures, or statistics. For example, if 21 out of 68 students passed a difficult exam, you could say that 30.88% of the class succeeded. This percentage gives a clearer picture of the proportion than the fraction alone, making it easier to understand and compare with other data.