Quick reference
- 1/2 = 50%, 1/3 ≈ 33.33%, 2/3 ≈ 66.67%
- 1/4 = 25%, 3/4 = 75%
- 1/5 = 20%, 3/5 = 60%
- 1/8 = 12.5%, 5/8 = 62.5%
- 1¾ = 175% (mixed number)
How it works
For a simple fraction n/d, divide and multiply by 100: percent = (n ÷ d) × 100. For a mixed number a + n/d, add the whole part first: percent = (a + n/d) × 100. The calculator also shows the GCD-simplified form (e.g., 6/8 → 3/4).
FAQ
What if the denominator is zero?
Division by zero is undefined; the calculator returns "—" rather than infinity.