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:2/5 ÷ 2/1 = 2/5 × 1/2
- Multiply the tops, then the bottoms(2 × 1)/(5 × 2) = 2/10
- SimplifyDivide the top and bottom by 2: 2/10 = 1/5
Check: 1/5 × 2 = 2/5 ✓