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Fraction Calculator

Use this fraction calculator to add, subtract, multiply, or divide fractions and mixed numbers. Enter the values, choose an operation, and click Calculate to get a simplified answer with clear, step-by-step working.

First fraction
Second fraction
The whole-number box is optional. Leave it blank for proper or improper fractions. For a negative mixed number, place the minus sign in the whole-number box.

Step-by-step solution

How to Use the Fraction Calculator

This fraction calculator helps you to quickly add, subtract, multiply, or divide fractions and mixed numbers.

To use it:

  1. Enter the first fraction.
  2. Choose Add, Subtract, Multiply, or Divide.
  3. Enter the second fraction.
  4. Click Calculate.

The calculator returns the final answer in its simplest form and shows you how the fraction was calculated.

Tip. If you are entering a proper or improper fraction, leave the whole-number box blank. However, for a mixed number such as 2132\frac{1}{3}, enter 2 in the whole-number box, 1 as the numerator, and 3 as the denominator.

What Can the Fraction Calculator Calculate?

You can use the calculator to perform the four main operations involving fractions:

  • Addition
  • Subtraction
  • Multiplication
  • Division

It works with proper fractions, improper fractions, mixed numbers, whole numbers, and negative fractions.

The calculation steps also change depending on the operation you select. For example, when adding or subtracting fractions, the calculator finds the least common denominator. However, when dividing fractions, it finds the reciprocal of the second fraction before multiplying.

How the Calculator Handles Different Fraction Operations

The method used depends on the operation you select.

Adding or Subtracting Fractions

When the denominators are different, the calculator first finds the least common denominator. It then rewrites the fractions using the common denominator before adding or subtracting the numerators. If the final fraction can be reduced, it is simplified automatically.

Multiplying Fractions

When multiplying fractions, the calculator multiplies the numerators and then multiplies the denominators. The resulting fraction is then reduced to its simplest form.

Dividing Fractions

When dividing fractions, the calculator keeps the first fraction, finds the reciprocal of the second fraction, and changes division to multiplication. It then multiplies the fractions and simplifies the result.

Mixed Numbers

If one or both values are mixed numbers, the calculator first converts them to improper fractions. It then performs the selected operation using the improper fractions.

If you only need to work with mixed numbers, you can also use our Mixed Fraction Calculator.

Fraction Calculator Example

Suppose you want to find:

5/6 − 3/8

To find the answer using the calculator:

  1. Enter 5 and 6 as the numerator and denominator of the first fraction.
  2. Select Subtract.
  3. Enter 3 and 8 as the numerator and denominator of the second fraction.
  4. Click Calculate.

The calculator gives: 5/6 − 3/8 = 11/24.

It also shows how the answer was obtained as follows:

The least common denominator of 6 and 8 is 24.

Thus: 5/6 = 20/24 and 3/8 = 9/24

Therefore, 20/24 − 9/24 = 11/24

Since 11 and 24 have no common factor greater than 1, the fraction is already in its simplest form.

Understanding the Results

The calculator gives the final answer as a simplified fraction. If the answer is an improper fraction, it also shows the equivalent mixed number.

For example, 134=314\frac{13}{4} = 3\frac{1}{4}

The calculator also gives the decimal and percentage equivalents of the answer. For example, 3/4 = 0.75 = 75%

If you only want to convert a fraction to a decimal, use our Fraction to Decimal Calculator. However, if you only want to reduce a fraction to its simplest form, the Simplifying Fractions Calculator may be useful.

Why Does the Calculator Simplify the Answer?

Fractions are normally written in their simplest form. For example, 18/24 can be simplified because both 18 and 24 are divisible by 6.

Thus, 18/24 = 3/4

When simplification is needed, the calculator finds the greatest common factor and shows how the fraction is reduced.

Frequently Asked Questions

What is a fraction calculator?

A fraction calculator is a tool used to add, subtract, multiply, or divide fractions. This calculator also simplifies the answer and shows how the result was obtained step by step.

Does the calculator simplify fractions automatically?

Yes. The calculator reduces the final answer to its simplest form. If simplification is required, the calculation steps also show the greatest common factor used to reduce the fraction.

Can I calculate mixed fractions?

Yes. Enter the whole number, numerator, and denominator in the appropriate boxes. The calculator automatically converts the mixed number into an improper fraction before performing the calculation.

Can I use a mixed number and a simple fraction together?

Yes. For example, you can calculate: 2 1/4 + 3/5. Just enter the whole-number part only for the mixed number and leave the whole-number box blank for the simple fraction.

Can I enter improper fractions?

Yes. You can enter improper fractions directly. If the final answer is an improper fraction, the calculator also gives the equivalent mixed number.

Can I enter negative fractions?

Yes. For a simple fraction, enter the negative sign with the numerator. However, for a negative mixed number, enter the negative sign with the whole number.

Can a Fraction Have a Denominator of Zero?

No. A denominator cannot be zero because division by zero is undefined. For example, 5/0 is not a valid fraction. Therefore, if you enter zero as a denominator, the calculator will ask you to correct the value before calculating the answer.

Cite this Calculator

Choose APA, MLA, Chicago, or Harvard, then copy the citation.

Joseph Mburu. (2026, October 16). Fraction Calculator. Stat Study Hub. Retrieved October 20, 2026, from https://statstudyhub.com/fraction-calculator/

Joseph Mburu

About This Calculator

Prepared by

Joseph is an experienced Statistician and Data Analyst with over six years of hands-on work in applied statistics, data science, and quantitative research. He holds advanced degrees in Applied Statistics and Data Analytics, reflecting strong technical and academic expertise. Joseph is the…