MTMasterTool

Fraction Calculator

Calculate fraction instantly in your browser.

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What this tool does

Calculate fraction instantly in your browser. Integer fractions only, with safe-integer arithmetic.

How to use the Fraction Calculator

  1. Enter or select first numerator.
  2. Enter or select first denominator.
  3. Enter or select operation.
  4. Enter or select second numerator.
  5. Enter or select second denominator.
  6. Read the calculated result; change any measurement to compare alternatives.

Formula

a/b±c/d=(ad±bc)/bd; product=ac/bd; quotient=ad/bc; reduce by GCF
a
First numerator
b
First denominator
op
Operation
c
Second numerator
d
Second denominator

Integer fractions only, with safe-integer arithmetic.

Worked example

For fraction calculator, the following measurements illustrate the exact method: First numerator: 1; First denominator: 2; Operation: +; Second numerator: 1; Second denominator: 3.

Inputs

  • First numerator1
  • First denominator2
  • OperationAdd
  • Second numerator1
  • Second denominator3

Result

  • Reduced fraction5/6
  • Decimal0.83

Results explained

Reduced fraction
Reduced fraction from the formula above. Integer fractions only, with safe-integer arithmetic.
Decimal
Decimal from the formula above. Integer fractions only, with safe-integer arithmetic.

Frequently asked questions

a/b±c/d=(ad±bc)/bd; product=ac/bd; quotient=ad/bc; reduce by GCF

Integer fractions only, with safe-integer arithmetic.

Where mathematically meaningful, yes. Fields specify permitted ranges and undefined operations display an error.

Exact integer calculations use safe integers; decimal calculations use browser floating point, so small rounding differences can occur.

All values remain in your browser and are never uploaded.