21/31 = ≈67.74%
Rounded to 2 decimal places.
A value like 21/31, or 67.74%, might describe how many students in a class prefer a certain lunch option or how often a bus arrives on time. It means the amount is a little more than two-thirds of the whole.
To picture it quickly, imagine a group of 31 items with 21 marked or shaded. Since two-thirds is about 66.7%, this amount is just a little higher than two-thirds.
One common point of confusion is treating 67.74% as exactly two-thirds. It’s close, but not the same, so that small difference can matter when the group is large or accuracy is important.
