The fraction 21/28 is equal to 75.00% when converted to a percentage and rounded to two decimal places. This means that 21 out of 28 parts represent three-quarters of the whole. It's a common fraction that comes up in various real-world situations, from cooking measurements to academic grading scales.
In practical terms, 75% is often used to describe things that are mostly complete or mostly full. For example, if a battery is at 75% charge, it means it still has plenty of power left. Or if a student scores 21 out of 28 on a test, they've answered about three-quarters of the questions correctly. This fraction and its percentage equivalent are useful for quickly understanding proportions in everyday life.