18/72 = 25%
A value like 25% can show up when a store offers a quarter off a price, or when one out of four students in a group rides the bus. It’s a handy way to describe a share of a whole.
To picture it quickly, imagine a square split into four equal parts: 18/72 is the same size as one of those parts. You can also think of it as roughly one quarter of the whole.
A common mistake is to read 18/72 as 18% because the top number is 18. The denominator matters too, so the fraction describes how 18 compares with 72, not just the number 18.
