Step by step
- Write each number as a fraction3 = 3/13 3/4 = (3 × 4 + 3)/4 = 15/4
- Multiply the tops, then the bottoms(3 × 15)/(1 × 4) = 45/4
- Write it as a mixed number45 ÷ 4 = 11 remainder 1, so 45/4 = 11 1/4
Check: 45/4 ÷ 15/4 = 3 ✓
Check: 45/4 ÷ 15/4 = 3 ✓
Each bar is one whole, split into equal parts.
3 times 3 3/4 is 11 1/4, which is 45/4 as an improper fraction. As a decimal it's 11.25.
Turn any mixed or whole numbers into fractions, multiply the numerators and the denominators, then simplify. The steps above show each line.
45/4.