Yes — the result is reduced by dividing numerator and denominator by their GCD.

Can I use negative fractions?

Yes — a negative sign on numerator or denominator works.

What about mixed numbers?

Convert to improper first (e.g., 1½ = 3/2).

Fractions whose denominator has prime factors other than 2 or 5 produce repeating decimals.

Add, subtract, multiply, or divide two fractions and get the simplified result plus a decimal approximation.

All math runs in your browser — nothing is uploadedReviewed & updated: January 1970Methodology

Numerator 1Denominator 1

Operation

Numerator 2Denominator 2

Fraction 1 · 1/2

Fraction 2 · 1/3

Result · 5/6

Result (simplified)5 / 6

As decimal0.833333

a/b + c/d = (ad + bc)/(bd). Multiply: ac/bd. Divide: ad/bc. Simplify by GCD.

Example

1/2 + 1/3 = 5/6 ≈ 0.8333.

Does it simplify?: Yes — the result is reduced by dividing numerator and denominator by their GCD.
Can I use negative fractions?: Yes — a negative sign on numerator or denominator works.
What about mixed numbers?: Convert to improper first (e.g., 1½ = 3/2).
Why is my decimal repeating?: Fractions whose denominator has prime factors other than 2 or 5 produce repeating decimals.

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