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Fraction Calculator with Step-by-Step Solutions

Perform arithmetic on fractions with instant simplification and mixed number conversions.

Quick Answer:Input two fractions and your desired operator (+, -, *, /). The tool automatically calculates the common denominator and reduces the fraction.
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How to Use the Fraction Calculator: Add, Subtract, Multiply & Divide

  1. 1Enter the numerator and denominator for your first fraction.
  2. 2Choose your arithmetic operator (+, -, *, /) from the selector.
  3. 3Enter the numerator and denominator for your second fraction.
  4. 4View the exact simplified fraction, mixed number, and decimal representation instantly.

Formula & How It Works

Fraction Operations & Simplification

Addition: (a/b) + (c/d) = (ad + bc) / bd; Reduction: GCD(num, den)

Uses greatest common divisor (GCD) to reduce cross-multiplied fractions to lowest terms.

Worked Examples

Adding 1/2 and 1/3

Input: 1/2 + 1/3

Explanation: Find common denominator 6: (3/6) + (2/6) = 5/6, already in lowest terms.

Result: 5/6 (Decimal: 0.8333)

Frequently Asked Questions

What is the difference between proper and improper fractions?▼

A proper fraction has a numerator smaller than its denominator (e.g., 3/4), whereas an improper fraction has a numerator equal to or greater than its denominator (e.g., 5/3).

How do you divide two fractions?▼

Keep the first fraction, change the division sign to multiplication, flip the second fraction to its reciprocal, and multiply across.

Can this calculator simplify negative fractions?▼

Yes, signs are handled properly and negative denominators are automatically normalized to the numerator.

How is a mixed number converted to an improper fraction?▼

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Quick Reference & Conversion Table

FractionSimplified FormDecimal ValuePercentage
2/41/20.500050.0%
4/62/30.666766.7%
6/83/40.750075.0%
8/104/50.800080.0%

⚠️ Common Pitfalls to Avoid

  • •Adding denominators directly instead of finding a common multiple.
  • •Forgetting to invert the second fraction when performing division.

💡 Practical Real-World Uses

  • •Scaling culinary baking recipes up or down.
  • •Carpentry and construction measurements involving fractional inches.
Last reviewed & updated: 2026-11-11
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