Free Math Tool

Free Fraction Calculator with Steps

Add, subtract, multiply, and divide fractions instantly. See step-by-step solutions, auto-simplified results, decimal and percentage conversions, and visual fraction bars. Supports mixed numbers. No sign-up, no ads.

100% FreeHow it works
Fraction Calculator
Fraction 1
Fraction 2
Result
1/3Add1/4=7/12
Decimal
0.583
Percentage
58.3333%
Visual
Fraction 11/3
Fraction 21/4
Result7/12
Step-by-Step Solution
  1. 1.
    Start with: 1/3 + 1/4
  2. 2.
    Find LCD: LCD of 3 and 4 = 12
  3. 3.
    Convert fractions: 4/12 + 3/12
  4. 4.
    Add numerators: 4 + 3 = 7 → 7/12

Present shows the problem full screen for the class and reveals the steps one at a time. Press F to open it.

How to use it

How to Calculate Fractions in 4 Steps

From problem to simplified answer in seconds.

  1. 1

    Enter your fractions

    Type the numerator and denominator for each fraction. Optionally add a whole number for mixed numbers.

    3 seconds

  2. 2

    Choose an operation

    Select Add, Subtract, Multiply, or Divide. Or switch mode to simplify a single fraction, compare two fractions, or convert between fractions, decimals and percentages.

    1 second

  3. 3

    See step-by-step solution

    Get the simplified result with a full step-by-step breakdown showing every stage of the calculation.

    Instant

  4. 4

    Convert the result

    Instantly see the result as a decimal, percentage, and mixed number. Visual fraction bar included.

    Instant

What you get

Everything You Need for Fraction Math

  • Instant Results

    Enter two fractions and an operation — get the simplified answer in real time with no clicking needed.

  • Step-by-Step Solutions

    See every step of the calculation: finding common denominators, multiplying, and simplifying with GCD.

  • All 4 Operations

    Add, subtract, multiply, and divide fractions. Handles proper fractions, improper fractions, and mixed numbers.

  • Auto-Simplify with GCD

    Every result is automatically reduced to its simplest form using the Greatest Common Divisor algorithm.

  • Decimal & Percentage

    Convert any fraction result to its decimal equivalent and percentage instantly. Great for quick comparisons.

  • Visual Fraction Bars

    See fraction bar diagrams that visually represent each fraction and the result. Perfect for teaching.

  • Mobile-Friendly

    Calculate fractions on your phone during class, homework, or study sessions. Fully responsive design.

  • Private & Secure

    All calculations happen in your browser. The numbers you enter are not saved or sent to a server.

What Is a Fraction Calculator?

A fraction calculator is a math tool that performs arithmetic operations on fractions — addition, subtraction, multiplication, and division. It automatically finds common denominators, calculates the result, and simplifies the answer using the Greatest Common Divisor (GCD).

This free online fraction calculator goes beyond basic computation. It shows a complete step-by-step solution for every problem, converts results to decimals and percentages, handles mixed numbers, compares two fractions, turns decimals (including repeating ones) back into fractions, and displays visual fraction bar diagrams. It is designed for students learning fractions and teachers demonstrating fraction operations.

Whether you need to add fractions with different denominators, simplify a fraction to its lowest terms, or convert a fraction to a decimal, this tool handles it instantly with a full explanation of every step.

How to Use Fractions in the Classroom

Many students in grades 3-8 find fractions hard to picture. The visual fraction bars in this calculator show each fraction as a part of a whole next to the numbers. Teachers can use Present mode on a projector or smartboard to show a problem full screen and reveal the steps one at a time.

Want to create fraction practice problems automatically? Our AI Quiz Maker can generate fraction quizzes from any topic. Pair it with our AI Worksheet Generator for printable fraction practice worksheets, or use the Grade Calculator to score the results.

Fraction Calculator — Frequently Asked Questions

Common questions about this free fraction tool

To add fractions with different denominators, find the Least Common Denominator (LCD), convert each fraction to an equivalent fraction with that denominator, then add the numerators. This calculator does all of that automatically and shows each step.

Simplifying (or reducing) a fraction means dividing both the numerator and denominator by their Greatest Common Divisor (GCD) to get the smallest equivalent fraction. For example, 6/8 simplifies to 3/4 because GCD(6,8) = 2.

Multiply the numerators together and the denominators together: (a/b) x (c/d) = (a*c)/(b*d). Then simplify the result. This calculator handles it automatically with step-by-step explanations.

To divide fractions, multiply the first fraction by the reciprocal (flipped version) of the second: (a/b) / (c/d) = (a/b) x (d/c). The calculator shows this 'Keep, Change, Flip' process step by step.

Yes! Enter the whole number, numerator, and denominator for mixed numbers like 2 3/4. The calculator converts them to improper fractions before calculating and can convert the result back to a mixed number.

To convert a fraction to a decimal, divide the numerator by the denominator. To get a percentage, multiply the decimal by 100. This calculator shows both conversions automatically for every result.

No. All calculations happen entirely in your browser. The fractions you enter are not saved and are not sent to a server.

Still have questions?

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