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Mixed Number Calculator

Add, subtract, multiply, and divide mixed numbers with step-by-step improper fraction conversions.

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How to Use the Mixed Number Calculator – Add, Subtract, Multiply

  1. 1Enter the whole number, numerator, and denominator for Fraction 1.
  2. 2Select the arithmetic operator: Add (+), Subtract (-), Multiply (×), or Divide (÷).
  3. 3Enter the whole number, numerator, and denominator for Fraction 2.
  4. 4View the simplified mixed number, improper fraction, decimal, and step-by-step solution.

Formula & How It Works

Mixed Number Arithmetic & Fraction Reduction

Whole n/d = (Whole × d + n) / d

Mixed numbers are converted to improper fractions: w n/d = (w × d + n) / d. Operations are performed using common denominators for addition/subtraction or reciprocal multiplication for division, before reducing via greatest common factor (GCF).

Worked Examples

Mixed Number Addition Example

Input: 1 1/2 + 2 1/4

Explanation: 3/2 + 9/4 = 6/4 + 9/4 = 15/4 = 3 3/4.

Result: 3 3/4 (Improper: 15/4, Decimal: 3.75)

Mixed Number Subtraction

Input: 3 1/3 - 1 1/2

Explanation: 10/3 - 3/2 = 20/6 - 9/6 = 11/6 = 1 5/6.

Result: 1 5/6 (Improper: 11/6, Decimal: 1.8333...)

Mixed Number Multiplication

Input: 2 1/2 × 1 1/3

Explanation: 5/2 × 4/3 = 20/6 = 10/3 = 3 1/3.

Result: 3 1/3 (Improper: 10/3, Decimal: 3.3333...)

Mixed Number Division

Input: 4 1/2 ÷ 1 1/2

Explanation: 9/2 ÷ 3/2 = 9/2 × 2/3 = 18/6 = 3.

Result: 3 (Improper: 3/1, Decimal: 3.0)

Frequently Asked Questions

What is a mixed number?▼

A mixed number is a number consisting of an integer whole number and a proper fraction combined (such as 2 1/2 or 4 3/4).

How do you convert a mixed number to an improper fraction?▼

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

How do you divide two mixed numbers?▼

Convert both mixed numbers to improper fractions, flip the second fraction to find its reciprocal, and multiply.

What happens if the whole number is zero?▼

If the whole number is zero, the tool treats the input as a simple proper or improper fraction.

Does the calculator automatically simplify fractions to lowest terms?▼

Yes, the tool divides both numerator and denominator by their greatest common divisor (GCF) to produce the lowest irreducible terms.

Does this tool work completely offline?▼

Yes, all fraction arithmetic runs locally in your web browser with zero server latency.

Last reviewed & updated: 2026-11-01
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