Looking for a fraction calculator add subtract multiply divide? This free tool gives you simplified result with mixed number and decimal forms. Just enter your numbers and press Calculate — results are instant.
To add or subtract fractions, first give them the same denominator: multiply each fraction top and bottom so both denominators match, then add or subtract the numerators. To multiply, multiply straight across; to divide, flip the second fraction and multiply. The calculator then simplifies the answer by dividing top and bottom by their greatest common divisor, and also shows the mixed number and the decimal.
Example: 1/2 + 1/4
Result (simplified): 3 / 4
Divide the top and bottom by their greatest common divisor — the largest number that divides both. For 6/8 that is 2, giving 3/4.
A whole number plus a fraction, like 1 3/4. It is the same value as the improper fraction 7/4, just written in a friendlier way.
Dividing by zero has no answer: it would mean splitting something into zero parts. The calculator refuses it rather than giving a wrong result.