31/149 = ≈20.81%
Rounded to 2 decimal places.
A fraction like 31/149, or about 20.81%, could describe a little more than one-fifth of a group. For example, it might represent 31 students out of 149 choosing the same activity, or 31 defective items in a shipment of 149.
To picture 31/149 quickly, imagine dividing a group into five nearly equal parts and shading one part, then adding just a little more. Since 20% is one-fifth, 20.81% is only slightly larger than that.
A common mistake is to assume that 31/149 is exactly 20% because it is close to one-fifth. It is actually a bit higher, so rounding may be useful for a quick estimate but should not replace the more precise value when accuracy matters.
