About Fraction Calculator
A fraction a/b is a numerator over a non-zero denominator. This calculator converts each input to an improper fraction, then applies the standard rules: a/b + c/d = (ad + cb)/bd, a/b − c/d = (ad − cb)/bd, a/b × c/d = ac/bd, and a/b ÷ c/d = ad/bc. The result is reduced by the greatest common divisor. Inputs can be fractions (3/4), mixed numbers (1 1/2), whole numbers, or decimals.
Also known as: Mixed Number Calculator.
How to use Fraction Calculator
- Fill in "First fraction", "Operation" and "Second fraction".
- The result appears below and updates as you type.
- Copy the result with the copy button, or download it as a file where that is offered.
Questions about Fraction Calculator
How do I enter a mixed number?
Type the whole part, a space, then the fraction, for example 1 1/2 for one and a half. A negative mixed number such as -2 1/3 is read as minus two and one third.
How do you add fractions with different denominators?
Rewrite both over a common denominator, add the numerators, then simplify. For 1/2 + 3/4, use 4 as the denominator: 2/4 + 3/4 = 5/4, which is 1 1/4.
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