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Formula
(a/b) ± (c/d) = (ad ± bc) / bda, c- Numerators
b, d- Denominators (cannot be zero)
Example
Adding Fractions with Different Denominators
Add 1/4 and 2/3.
- Identify the common denominator (LCM of 4 and 3): 12.
- Convert 1/4 to 3/12 (multiply top and bottom by 3).
- Convert 2/3 to 8/12 (multiply top and bottom by 4).
- Add the numerators: 3 + 8 = 11.
- Result: 11/12
Frequently Asked Questions
Yes, all fraction results are automatically simplified to their lowest terms using the greatest common divisor.
Yes, just put the whole number in the numerator and 1 in the denominator.
When the result is an improper fraction (numerator is larger than denominator), the calculator will also display the equivalent mixed number.