Step by step
- Write each number as a fraction2 = 2/1
- Multiply the tops, then the bottoms(2 × 1)/(1 × 5) = 2/5
Check: 2/5 ÷ 1/5 = 2 ✓
Check: 2/5 ÷ 1/5 = 2 ✓
Each bar is one whole, split into equal parts.
2 times 1/5 is 2/5. As a decimal it's 0.4.
Turn any mixed or whole numbers into fractions, multiply the numerators and the denominators, then simplify. The steps above show each line.