Fractions
Add, subtract, multiply, or divide fractions and simplify the result.
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How it works
Adds, subtracts, multiplies, and divides fractions and returns the result already simplified, along with its decimal value. Simplifying divides numerator and denominator by their greatest common divisor.
Formula
a/b + c/d = (a·d + c·b) ÷ (b·d) · a/b × c/d = (a·c) ÷ (b·d)
Example
3/4 + 5/6 = 9/12 + 10/12 = 19/12, which equals 1 7/12 or 1.583…
Frequently asked questions
Why can't the denominator be 0?
Division by zero is undefined in mathematics, so any fraction with denominator 0 is rejected.
How do I turn a fraction into a decimal?
Divide the numerator by the denominator: 3 ÷ 4 = 0.75.