13/26 = 50%
A value of 13/26, or 50%, can show up when half of something is used, chosen, or completed. For example, if 13 of 26 students ride the bus, exactly half the class rides it.
You can picture 13/26 as one of two equal groups, like one side of a sandwich cut into two equal pieces. It’s also easy to estimate as “about half” when comparing amounts.
A common point of confusion is thinking that 13/26 is less than half because both numbers look different from 1 and 2. But the fraction is exactly half, not just close to it.