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