Step by step
- Find a common denominatorThe lowest common denominator of 4 and 2 is 4.3/4 = (3 × 1)/(4 × 1) = 3/41/2 = (1 × 2)/(2 × 2) = 2/4
- Subtract the numerators (tops)3/4 − 2/4 = 1/4
Check: 1/4 + 1/2 = 3/4 ✓
Check: 1/4 + 1/2 = 3/4 ✓
Each bar is one whole, split into equal parts.
3/4 minus 1/2 is 1/4. As a decimal it's 0.25.
Rewrite both fractions with a common denominator, subtract the numerators, then simplify. The steps above show each line.