15/21 = ≈71.43%
Rounded to 2 decimal places.
A value like 15/21, or about 71.43%, can show up when 15 out of 21 people choose a certain option in a survey. It could also describe completing 15 of 21 tasks, answering 15 of 21 questions correctly, or having 15 successful results out of 21 attempts.
To picture 15/21 quickly, imagine a group of 21 objects with 15 shaded and 6 unshaded. Since 15 is a little more than two-thirds of 21, you can estimate the fraction as slightly above 66.7%, or close to seven-tenths.
A common mistake is treating 15/21 as exactly 70% instead of recognizing that it is a little higher, at about 71.43%. Another point of confusion is that 15/21 can be simplified to 5/7 without changing its value, so these two fractions represent the same amount.
