Fraction Calculator
Add, subtract, multiply, or divide fractions and reduce the result.
What this calculator does
Calculate with two fractions, automatically reduce the answer, and see its decimal equivalent.
Inputs and what they mean
- First numerator
- — number value.
- First denominator
- — number value.
- Operation
- — choice value.
- Second numerator
- — number value.
- Second denominator
- — number value.
How to use it
- Enter two numerators and non-zero denominators.
- Choose an operation.
- Read the reduced fraction and decimal result.
Formula
Addition/subtraction use a common denominator; multiplication multiplies across; division multiplies by the reciprocal.
Worked example
Add 1/2 and 1/3
The common denominator is 6, giving 3/6 + 2/6 = 5/6.
Reading the result
The headline figure is the main answer. Any breakdown underneath shows the parts that make it up, so you can check the working and see what changes when you adjust an input.
Limitations and assumptions
Results depend entirely on the figures you enter and are rounded for display. They are for general information and education, not professional advice.
Common questions
Related tools
Calculate percentages, proportions, and percentage change with a clear formula breakdown.
Calculate a value after a percentage increase and see the exact increase amount.
Calculate a value after a percentage decrease and see the exact reduction.