How do I add 1/2 + 1/3?

Convert to a common denominator: 1/2 = 3/6 and 1/3 = 2/6. Add: 3/6 + 2/6 = 5/6. The calculator does this automatically.

How do I simplify a fraction?

Divide numerator and denominator by their GCF (Greatest Common Factor). E.g. 4/6: GCF(4,6)=2, so 4/6 = 2/3.

How do I divide fractions?

Multiply the first fraction by the reciprocal of the second: (a/b) ÷ (c/d) = (a/b) × (d/c) = ad/bc.

How do I convert a fraction to a decimal?

Divide the numerator by the denominator: 3/4 = 3 ÷ 4 = 0.75. The calculator shows the decimal result automatically.

📐 Fraction Calculator

Calculate with fractions easily. Enter two fractions and select an operation — the calculator shows the step-by-step solution and the result as a simplified fraction and decimal.

Fraction 1

Fraction 2

Simplified

5/6

Decimal: 0.833333

Step-by-step

Convert to common denominator: 1/2 = 3/6, 1/3 = 2/6

Result: 5/6

The fraction calculator adds, subtracts, multiplies and divides fractions and gives the result both as a simplified fraction and as a decimal. It shows the steps, so you see how the solution unfolds rather than just the final answer.

How the calculator works and what it’s for▾

How fraction arithmetic works

For addition and subtraction the fractions are given a common denominator, then the numerators are added or subtracted. For example 1/2 + 1/3 becomes 3/6 + 2/6 = 5/6.

Multiplication multiplies the numerators and denominators together, and division multiplies by the reciprocal of the second fraction.

What you enter and what you get

You provide two fractions and an operation. You receive the simplified fraction, the matching decimal value and the working steps.

Simplified form means the numerator and denominator have been divided by their greatest common factor, leaving the fraction in its lowest terms.

Who it is for

It is useful in school and high school maths, but also in everyday life when you scale a recipe, measurements or split time into parts.

The step-by-step view makes it an excellent learning tool, because you see the method and not only the answer.

Common mistakes

A frequent error is adding numerators and denominators directly without a common denominator — that is never correct for addition or subtraction.

Remember to simplify the result too; an unreduced answer is correct in value but usually not the desired final form.

🔄 Reviewed June 2026

Frequently asked questions

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