Fraction Calculator
Use this free online fraction calculator to add, subtract, multiply, and divide fractions with step-by-step solutions. Enter two fractions and select an operation.
Fraction Calculator
AI Assistant
Ask about this calculator
I can help you understand the fraction calculator formula, interpret your results, and answer follow-up questions.
Try asking
Formula
How it works: To add fractions, find a common denominator by cross-multiplying, then simplify the result.
Review and Methodology
This calculator runs locally in your browser. Inputs are converted into the units required by the formula, and the result is paired with supporting references so you can verify the method before using it for planning or estimates.
Worked Example
What Is a Fraction?
A fraction represents a part of a whole. It consists of a numerator (top number) showing how many parts you have, and a denominator (bottom number) showing how many equal parts make up the whole. Fractions are fundamental to mathematics and appear in everyday life from cooking to construction.
- 1/2 means one out of two equal parts, or 50% of the whole
- Fractions with the same value but different numbers are called equivalent fractions (1/2 = 2/4 = 3/6)
- A proper fraction has a numerator smaller than its denominator (3/4), while an improper fraction has a larger numerator (5/3)
- Mixed numbers combine a whole number with a fraction (1 1/2), and can be converted to improper fractions (3/2)
Understanding fractions is essential for working with recipes, measurements, probabilities, ratios, and algebra. Fraction operations (add, subtract, multiply, divide) follow specific rules that differ from whole number arithmetic.
You can also calculate changes using our Decimal to Fraction Calculator, Ratio Calculator or Proportion Calculator.
Frequently Asked Questions
How do I add fractions with different denominators?
Find the least common denominator (LCD), convert both fractions to equivalent fractions with the LCD, then add the numerators. For example, 1/3 + 1/4: LCD is 12, so 4/12 + 3/12 = 7/12.
How do I multiply fractions?
Multiply the numerators together and the denominators together: (a/b) × (c/d) = (ac)/(bd). For example, 2/3 × 3/4 = 6/12 = 1/2.
How do I divide fractions?
Multiply by the reciprocal (flip the second fraction): (a/b) ÷ (c/d) = (a/b) × (d/c). For example, 2/3 ÷ 1/4 = 2/3 × 4/1 = 8/3.
How do I simplify a fraction?
Divide both the numerator and denominator by their greatest common divisor (GCD). For example, 12/18: GCD is 6, so 12/6 = 2 and 18/6 = 3, giving 2/3.
How do I convert a fraction to a decimal?
Divide the numerator by the denominator. For example, 3/4 = 3 ÷ 4 = 0.75. Some fractions produce repeating decimals, like 1/3 = 0.333...
Can I use this Fraction Calculator on my own web page?
You can. Look for the "Embed" button near the top of this calculator. It lets you pick a size, border style, and color palette, then gives you an iframe tag to paste into any webpage. The widget is responsive, loads fast, and costs nothing. More details at calculory.com/services/embed-calculators.
AI Assistant
Ask about this calculator
I can help you understand the fraction calculator formula, interpret your results, and answer follow-up questions.
Try asking
Related Calculators
More Maths Calculators
View allRelated Articles
All articles
Guide to Interactive Math Games for Kids and Classrooms 2026
Interactive math games in 2026 blend adaptive online platforms with low-prep classroom activities. Use this guide to pick the best game format by age, goal, and time.
Read article
Best Math Training Apps in 2026: 12 Picks for Students, Adults, and Speed Enthusiasts
We tested 12 math training apps across four categories: academic support, logical reasoning, mental math speed, and gamified learning. See which apps actually improve your skills in 2026.
Read article
Best AI Math Solver in 2026: 13 Tools Tested for Step-by-Step Answers
We tested 13 AI math solvers for 2026, from photo scanners to step-by-step calculators. See which tools handle algebra, calculus, and word problems best.
Read article
Percentage Increase and Decrease Formula: How to Calculate with Examples
Master the percentage increase and decrease formulas with step-by-step worked examples. Calculate percentage change for prices, salaries, investments, and growth rates.
Read articleModern Tools for Every Need
Accurate and Reliable
All calculations run locally. Step-by-step solutions you can trust.
Verified Precision
Precise Mathematical Calculations Powered by Calculory AI