15/30 = 50%
The fraction 15/30 represents 50%, a value that shows up often in everyday life. For example, if 15 out of 30 students bring lunch from home, then half of the class brings lunch.
You can picture 15/30 quickly by imagining a group split into two equal parts. Since 15 is half of 30, the fraction is easy to estimate as one-half, or 50%.
A common mistake is thinking that 15/30 is 15% because people sometimes focus only on the numerator. The denominator, 30, tells you the total number of parts, so the fraction describes half of the whole rather than 15 percent.
