Step by step
- Write each number as a fraction2 = 2/1
- Multiply the tops, then the bottoms(1 × 2)/(5 × 1) = 2/5
Check: 2/5 ÷ 2 = 1/5 ✓
Check: 2/5 ÷ 2 = 1/5 ✓
Each bar is one whole, split into equal parts.
1/5 times 2 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.