HOW TO add or subtract fractions with unlike denominators?

Enter both fractions, select Add or Subtract, and press Calculate. The tool finds the LCM of denominators, converts to equivalent fractions, and returns a simplified result.

HOW TO convert a mixed number to an improper fraction?

Select To Improper, type the mixed number like 2 1/3 in Value A, then Calculate. The output shows the improper fraction and simplified form.

HOW TO turn a decimal into a fraction?

Choose Decimal → Fraction, enter a decimal such as 0.125, and Calculate. The tool converts it exactly by scaling and then reduces by GCD.

HOW TO compare two fractions quickly?

Select Compare, enter two fractions, and press Calculate. The tool cross-multiplies using exact integers to return .

HOW TO simplify or reduce a fraction to lowest terms?

Choose Simplify, type your fraction (e.g., 150/210), and Calculate. The result is reduced using the greatest common divisor (GCD).

HOW TO add or subtract fractions with unlike denominators?

Enter both fractions, select Add or Subtract, and press Calculate. The tool finds the LCM of denominators, converts to equivalent fractions, and returns a simplified result.

HOW TO convert a mixed number to an improper fraction?

Select To Improper, type the mixed number like 2 1/3 in Value A, then Calculate. The output shows the improper fraction and simplified form.

HOW TO turn a decimal into a fraction?

Choose Decimal → Fraction, enter a decimal such as 0.125, and Calculate. The tool converts it exactly by scaling and then reduces by GCD.

HOW TO compare two fractions quickly?

Select Compare, enter two fractions, and press Calculate. The tool cross-multiplies using exact integers to return .

HOW TO simplify or reduce a fraction to lowest terms?

Choose Simplify, type your fraction (e.g., 150/210), and Calculate. The result is reduced using the greatest common divisor (GCD).

Fraction Calculator — Free Online Tool for Adding, Subtracting, Multiplying, Dividing, Simplifying Fractions

Fraction calculator — free online tool

Add, subtract, multiply, divide, simplify, compare, and convert fractions and mixed numbers. Accurate, mobile‑friendly, and works worldwide.

Value A

Supports fractions, mixed numbers, and decimals

Operation

Choose the task you need

Value B

Leave empty if the operation only needs A

Result

Enter values and choose an operation, then press Calculate.

What is a fraction calculator?

A fraction calculator is a specialized math tool that performs exact arithmetic with fractions and mixed numbers. It adds, subtracts, multiplies, and divides fractions, simplifies results to lowest terms, compares values precisely, and converts between mixed numbers and improper fractions. Unlike approximate decimal tools, it keeps calculations exact until the final step, which is ideal for homework, assessments, engineering checks, and everyday problem solving.

Why use this fraction calculator

Exact math: Calculations are performed using integers for the numerator and denominator to avoid rounding errors.
Mixed numbers: Convert freely between mixed and improper forms for clearer final answers.
Conversions: Turn decimals into accurate fractions and vice versa.
Utilities: Built-in GCD and LCM help with simplifying and finding common denominators.
Worldwide and mobile-friendly: No regional settings required—works on phones, tablets, laptops, and desktops everywhere.

Who benefits from a fraction calculator

Students: Master fraction operations, check homework, and learn step-by-step simplification.
Teachers: Demonstrate fraction procedures live and create worked examples quickly.
Professionals: Keep exact ratios in design, recipes, construction, finance, and data analysis.
Everyday use: Scale ingredients, split bills, and compare ratios without a calculator app install.

Pro tips for accurate results

Reduce at the end: Always simplify using GCD to present clean answers.
Convert mixed numbers: For multiplication or division, convert to improper fractions, then simplify.
Compare exactly: Cross-multiplying fractions gives precise comparisons without converting to decimals.

How to use this fraction calculator

Enter numbers: Type 3/4, 2 1/3, or 0.625 in Value A. Add Value B if your operation needs it.
Select an operation: Choose add, subtract, multiply, divide, simplify, compare, or convert options.
Calculate: Press Calculate to see exact fraction, mixed number, and decimal outputs.
Reset: Press Reset to clear all fields and start fresh.

Frequently asked questions

HOW TO add or subtract fractions with different denominators?

Enter both fractions, select Add or Subtract, and Calculate. The tool finds an LCM, converts each fraction to an equivalent form, performs the operation, and simplifies.

HOW TO multiply or divide mixed numbers?

Convert mixed numbers to improper fractions (To Improper), then multiply or divide. The result is simplified and can be shown as a mixed number again (To Mixed).

HOW TO convert a decimal like 0.125 to a fraction?

Choose Decimal → Fraction, enter 0.125, and Calculate. You’ll get 1/8 exactly after reduction by GCD.

HOW TO compare fractions without converting to decimals?

Select Compare and enter two fractions. The tool cross-multiplies using integers to determine which is greater, or if they are equal.

HOW TO simplify a large fraction to lowest terms?

Choose Simplify, enter your fraction, and press Calculate. The calculator divides both numerator and denominator by their GCD.

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