10/20 = 50%
A value like 10/20, or 50%, can show up when half the students in a class ride the bus or half the items in a snack pack are gone. It’s a useful way to describe an even split in everyday situations.
To picture it quickly, imagine a pizza cut into two equal halves: 10/20 is one full half. You can also think of a progress bar that is filled exactly to the middle.
One common point of confusion is thinking that 10/20 is different from 1/2 because the numbers look larger. They represent the same amount, just written in different forms.