4/16 = 25%
A value like 4/16, or 25%, can show up in everyday situations such as getting 25% off a sale item or completing 4 of 16 tasks. It might also describe one quarter of a group, like 4 students out of a class of 16.
To picture 4/16 quickly, imagine a square divided into four equal parts with one part shaded. You can also think of a quarter of a pizza, a dollar, or an hour, which makes the amount easier to estimate.
One common point of confusion is thinking that 4/16 is larger than 25% because both numbers in the fraction look fairly big. In reality, 4/16 represents just one out of four equal parts, so it is the same as 25%, not 40% or 16%.