Fraction Calculator
Add, subtract, multiply or divide two fractions.
Add, subtract, multiply or divide two fractions.
Add, subtract, multiply or divide two fractions. Fill in the fields above and the result updates instantly, together with the formula behind it.
a/b + c/d = (ad + bc) ÷ bd; a/b × c/d = ac ÷ bd; a/b ÷ c/d = ad ÷ bc; then divide by the greatest common divisor
1/2 + 1/3 = 5/6 (about 0.8333).
Use whole numbers for numerators and denominators. Results are reduced to lowest terms.
a/b + c/d = (ad + bc) ÷ bd; a/b × c/d = ac ÷ bd; a/b ÷ c/d = ad ÷ bc; then divide by the greatest common divisor. Example: 1/2 + 1/3 = 5/6 (about 0.8333).
You enter: First numerator; First denominator; Operation; Second numerator; Second denominator. An example value is shown in each empty field, and the result appears as soon as the numbers are valid.
Convert them to a common denominator: a/b + c/d = (a × d + c × b) ÷ (b × d), then reduce by the greatest common divisor. For 1/2 + 1/3 the result is 5/6.
Divide the numerator by the denominator: 5/6 = 0.8333, which is 83.33%. The result panel shows the decimal, mixed number and percentage.
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