Step by step
- Write each number as a fraction2 1/4 = (2 × 4 + 1)/4 = 9/42 = 2/1
- Keep, change, flipKeep the first fraction, change ÷ to ×, and flip the second fraction upside down:9/4 ÷ 2/1 = 9/4 × 1/2
- Multiply the tops, then the bottoms(9 × 1)/(4 × 2) = 9/8
- Write it as a mixed number9 ÷ 8 = 1 remainder 1, so 9/8 = 1 1/8
Check: 9/8 × 2 = 9/4 ✓