How this calculation works
To add fractions, convert them to a common denominator. Then add the numerators and simplify the final fraction.
Fraction Addition Calculator
Add two fractions by using a common denominator, then simplify the result.
Keep exploring this topic
Use the related tools and guides when the first answer raises the next question.
How the formula works
To add fractions, use a common denominator. Multiply each numerator by the other fraction denominator, add the new numerators, then simplify the answer.
Example
1/3 + 1/4 uses common denominator 12. The result is 4/12 + 3/12 = 7/12.
Common mistake
Do not add denominators directly. 1/3 + 1/4 is not 2/7 because thirds and fourths are different-sized pieces.