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Fraction Calculator
Add, subtract, multiply, divide, and simplify fractions or mixed numbers with a reduced answer, a mixed-number view, a decimal equivalent, and clear work steps.
Calculator console
Calculations run in your browser.Result in lowest terms
Step-by-step work
- Convert mixed numbers to improper fractions when needed.
- Apply the selected operation.
- Reduce the fraction to lowest terms.
How to use this fractions calculator
Use the fraction calculator when you need a quick answer for two fractions, two mixed numbers, or one of each. Type a whole number only when you are entering a mixed number. Then add the numerator and denominator, choose the operation, and press Calculate.
The output shows a reduced fraction, a mixed number when the result is larger than one, and a decimal equivalent. The work steps explain whether the calculator used a common denominator, multiplied numerators and denominators, flipped the second fraction for division, or reduced the answer with the greatest common factor.
What the result means
The fraction result is shown in lowest terms, so the numerator and denominator no longer share a common factor other than one. If the answer is improper, the mixed-number line separates the whole number from the remaining fractional part. The decimal line is useful for recipes, quick estimates, and checking whether an answer is reasonable.
This calculator is designed for common arithmetic with integers. It is helpful for homework checks, classroom examples, cooking adjustments, craft measurements, and everyday fraction arithmetic. If your teacher, workbook, or project uses a specific notation style, compare the final form with that requirement before turning it in.
Method notes for common fraction tasks
To add fractions or handle subtracting fractions, the calculator finds a common denominator, rewrites both fractions, combines the numerators, and then reduces the answer. This is the same idea as finding a least common denominator by hand.
For multiplying fractions, it multiplies numerator by numerator and denominator by denominator. For dividing fractions, it uses the reciprocal of the second fraction before multiplying. Mixed numbers are converted to improper fractions first so the arithmetic stays consistent.
- Use nonzero denominators.
- Leave the whole-number field blank for a proper or improper fraction.
- Use negative signs in the whole number or numerator, not both.
- Copy the result after reviewing the step list.
Examples
Add fractions
1/3 + 1/4 becomes 7/12 after converting both fractions to twelfths.
Subtract mixed numbers
2 1/2 - 3/4 becomes 1 3/4 after converting to improper fractions and reducing.
Multiply fractions
3/5 x 10/9 reduces to 2/3 because the shared factors cancel after multiplication.
Divide fractions
4/7 / 2/3 becomes 6/7 after multiplying by the reciprocal 3/2.
FAQ
Can this fraction calculator handle mixed numbers?
Yes. Enter the whole number in the optional whole field, then enter the numerator and denominator. The calculator converts mixed numbers to improper fractions before calculating.
How do I add fractions with different denominators?
The calculator finds a common denominator, rewrites each fraction with that denominator, adds the numerators, and reduces the result.
What happens when the answer is an improper fraction?
The answer stays available as a reduced improper fraction, and the mixed-number line shows the same value as a whole number plus a remaining fraction.
Can I use this to simplify fractions?
Yes. Enter a fraction as the first value and use the simplify example or add zero as the second value. The result panel reduces the fraction to lowest terms.
How is the decimal equivalent calculated?
The decimal is the reduced numerator divided by the reduced denominator. Long decimals are rounded for display, so use the fraction form for exact work.
Does the calculator save my entries?
No. The arithmetic runs in your browser with local JavaScript, and the page does not need an account or upload to calculate a result.
Limitations and review notes
This fraction calculator is for everyday arithmetic and educational checking. It does not replace a teacher's instructions, a workbook's required notation, or project-specific measurement rules. Review signs, denominators, and rounding before relying on a decimal result.
Privacy note: the calculation is handled by the page script in your browser. Avoid entering sensitive personal information because fraction arithmetic does not require it.