Step by step
- Write each number as a fraction2 1/2 = (2 × 2 + 1)/2 = 5/23 = 3/1
- Multiply the tops, then the bottoms(5 × 3)/(2 × 1) = 15/2
- Write it as a mixed number15 ÷ 2 = 7 remainder 1, so 15/2 = 7 1/2
Check: 15/2 ÷ 3 = 5/2 ✓
Check: 15/2 ÷ 3 = 5/2 ✓
Each bar is one whole, split into equal parts.
2 1/2 times 3 is 7 1/2, which is 15/2 as an improper fraction. As a decimal it's 7.5.
Turn any mixed or whole numbers into fractions, multiply the numerators and the denominators, then simplify. The steps above show each line.
15/2.