Fraction Calculator - Calculator See


Fraction Calculator

Add, subtract, multiply, and divide fractions with step-by-step solutions, LCD common denominators, and decimal equivalents.

Calculator Inputs

Top number of first fraction.
Bottom number of first fraction.
Arithmetic operator.
Top number of second fraction.
Bottom number of second fraction.

Calculated Results

Simplified Fraction Result
11 / 12
Decimal Equivalent 0.9167
Least Common Denominator (LCD) 12
Percentage 91.67%
Values calculate live as you adjust inputs.

About Fraction Calculator

A fraction calculator simplifies fraction arithmetic by identifying lowest common multiples for addition/subtraction and simplifying cross-products.

What is Fraction Calculator?

A fraction calculator simplifies fraction arithmetic by identifying lowest common multiples for addition/subtraction and simplifying cross-products.

How to Use This Calculator

  1. Enter numerator and denominator for Fraction 1.
  2. Select operation (+, -, ×, ÷).
  3. Enter numerator and denominator for Fraction 2.
  4. View simplified proper or improper fraction alongside exact decimal conversion.

The Mathematical Formula & Variables

Addition: (a/b) + (c/d) = (a*d + b*c) / (b*d); Multiplication: (a*c) / (b*d)

Variables Definition

Symbol / Variable Name Description
LCD Lowest Common Denominator LCM of both denominators.

Step-by-Step Worked Example

Scenario: Add 2/3 and 1/4.

  1. Find LCD of 3 and 4 = 12.
  2. Convert fractions: 2/3 = 8/12; 1/4 = 3/12.
  3. Add numerators: 8 + 3 = 11.
  4. Result = 11/12 (0.9167).

Result: Result = 11/12

Frequently Asked Questions

How do you divide two fractions?

To divide fractions, multiply the first fraction by the reciprocal (flipped upside down) of the second fraction: (a/b) ÷ (c/d) = (a/b) * (d/c).