The fraction 21/45 is equal to 46.67% when converted to a percentage. This percentage is rounded to the nearest two decimal places. The fraction represents a part-to-whole relationship, where 21 is the numerator (part) and 45 is the denominator (whole).
In everyday situations, percentages are often more intuitive than fractions. For example, if a student answered 21 out of 45 questions correctly on a test, it might be easier to understand their performance as 46.67% rather than 21/45. This percentage gives a clearer picture of how close the student came to a perfect score, which would be 100%.