Add, subtract, multiply, or divide two fractions and get a simplified result, mixed number, and decimal equivalent, right in your browser.
Enter two fractions and an operation to calculate.
A fraction represents a part of a whole, written as a numerator (the top number) over a denominator (the bottom number). Combining two fractions works differently depending on the operation:
Both fractions are rewritten over a common denominator (here, the product of the two denominators) before their numerators are combined.
Multiply straight across: numerator by numerator, denominator by denominator.
Dividing by a fraction is the same as multiplying by its reciprocal (flip the second fraction upside down).
Convert both fractions to a common denominator first (this calculator uses the product of the two denominators), combine the numerators, then simplify the result to lowest terms. For example, 1/2 + 1/4 becomes 2/4 + 1/4 = 3/4.
Multiply the numerators together and the denominators together, then simplify. 2/3 x 3/4 = 6/12, which simplifies to 1/2.
Multiply the first fraction by the reciprocal of the second (flip its numerator and denominator). 1/2 / 1/4 becomes 1/2 x 4/1 = 4/2, which simplifies to 2/1 (2).
An improper fraction has a numerator larger than its denominator, like 7/3. It represents a value greater than 1 and can also be written as a mixed number, like 2 1/3.
The sign is always normalized onto the numerator. -2/4 simplifies to -1/2, not 1/-2, so the denominator you see is never negative.
Dividing by a fraction means multiplying by its reciprocal, and a fraction like 0/5 has no reciprocal (you'd need to divide by zero to flip it). This calculator blocks that case with a clear error instead of returning an incorrect result.
No. Every calculation happens locally in your browser using JavaScript. Nothing you enter here is sent to Brekzy or stored anywhere.
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