26/52 = 50%
A fraction like 26/52, or 50%, shows up when something is split evenly into two groups. For example, half of a class might prefer pizza, half of a sale price might be discounted, or half of a battery might still be charged.
You can picture 26/52 as one full half of a whole, like 26 shaded squares out of 52 or one side of a sandwich cut into two equal pieces. When estimating quickly, think “about half” whenever the top number is close to half of the bottom number.
A common mistake is thinking 50% means 50 out of every 52 items. It actually means one-half of the total, so the total number can be any size as long as the two parts are equal.