Fraction Calculator
Add, subtract, multiply, or divide fractions. Results simplified automatically.
Result
7/12
≈ 0.5833
Fraction Operations
Add: a/b + c/d = (a×d + c×b) / (b×d)
Subtract: a/b − c/d = (a×d − c×b) / (b×d)
Multiply: a/b × c/d = (a×c) / (b×d)
Divide: a/b ÷ c/d = (a×d) / (b×c)
Subtract: a/b − c/d = (a×d − c×b) / (b×d)
Multiply: a/b × c/d = (a×c) / (b×d)
Divide: a/b ÷ c/d = (a×d) / (b×c)
Frequently Asked Questions
How do I add fractions?
Find a common denominator, convert both fractions, add the numerators, then simplify. For 1/4 + 1/3: common denominator 12 → 3/12 + 4/12 = 7/12.
How do I multiply fractions?
Multiply the numerators together and the denominators together. For 2/3 × 4/5: (2×4)/(3×5) = 8/15. Simplify if possible.
How do I divide fractions?
Multiply by the reciprocal (flip) of the second fraction. For 2/3 ÷ 4/5: 2/3 × 5/4 = 10/12 = 5/6.
How do I simplify a fraction?
Divide both numerator and denominator by their greatest common divisor (GCD). For 6/8: GCD is 2 → 3/4.