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What is a Fraction Calculator?

A Fraction Calculator is a mathematical tool designed to perform arithmetic operations (addition, subtraction, multiplication, division) on common fractions. Unlike standard calculators that convert everything to decimals, this tool preserves the fraction format (numerator/denominator) and automatically simplifies the result to its lowest terms using the Greatest Common Divisor (GCD) method.

Fractions represent a part of a whole and are written as `a/b` where `a` is the numerator (top) and `b` is the denominator (bottom). Working with fractions manually can be tedious, especially when denominators are different (requiring you to find the Least Common Multiple or LCM). For example, adding 1/3 + 1/4 requires converting them to 4/12 + 3/12 = 7/12.

Our calculator automates this entire process. It handles the cross-multiplication for addition/subtraction, direct multiplication for products, and reciprocal flipping for division. Most importantly, it includes an auto-reduction engine. If a calculation results in `50/100`, the tool instantly simplifies it to `1/2`. It also handles improper fractions (where numerator > denominator) correctly.

This tool is perfect for students checking homework, carpenters and chefs working with measurements (e.g., '1/2 inch + 3/8 inch'), and anyone who needs precise fractional results without decimal rounding errors.

1How to Use

  • Enter the first fraction: Input the Numerator (top) and Denominator (bottom) in the left column.
  • Select Operation: Choose Add (+), Subtract (-), Multiply (ร—), or Divide (รท) from the center dropdown.
  • Enter the second fraction: Input the Numerator and Denominator in the right column.
  • Calculate: Click the 'Calculate' button (or seeing results update automatically if supported).
  • View Result: The large display shows the final answer.
  • Note the simplification: The result is already reduced to its simplest form (e.g., 2/4 becomes 1/2).

โ˜…Key Features

  • Complete Arithmetic Support: Handles Addition, Subtraction, Multiplication, and Division.
  • Auto-Simplification: Built-in GCD algorithm reduces fractions to their simplest form automatically.
  • Zero Error Handling: Prevents division by zero and invalid inputs with clear alerts.
  • Visual Layout: Intuitive 'Numerator over Denominator' design matches how you write fractions on paper.
  • No Decimals: Keeps results in pure fraction form for mathematical precision.

โ“Frequently Asked Questions