3/6 = 50%
A value like 3/6, or 50%, shows up in everyday life when half of something is used, filled, or finished. For example, you might eat half a pizza or notice that a water bottle is half full.
To picture it quickly, imagine splitting a whole into two equal parts and shading one of them. You can also think of it as being right in the middle between none and all.
One common point of confusion is thinking that 3/6 is different from 1/2 because the numbers look different. They represent the same amount, so either fraction describes half of a whole.