12/24 = 50%
A fraction like 12/24 shows up in everyday life when half of something is used, chosen, or completed. For example, if 12 of 24 students bring lunch from home, that represents 50% of the class.
You can picture 12/24 as one of two equal parts, such as 12 shaded squares out of a grid of 24. It is also easy to estimate because the numerator is exactly half of the denominator, so the value is one-half.
A common mistake is thinking that larger numbers automatically mean a larger fraction. In this case, 12/24 has more digits than 1/2, but both fractions describe the same amount.