Add two fractions
Solve add two fractions with your values and follow each calculation step.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
a/b + c/d = (ad + bc)/(bd)
Variables & units
- First numerator
- Numeric value · minimum -1000000, maximum 1000000
- First denominator
- Numeric value · minimum -1000000, maximum 1000000
- Second numerator
- Numeric value · minimum -1000000, maximum 1000000
- Second denominator
- Numeric value · minimum -1000000, maximum 1000000
Worked example
1/3 + 1/6 = 3/6 = 1/2.
Assumptions
Add numerators only after using a common denominator. Denominators may be negative, but never zero.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
Use the default input values to find the answer. The reset icon restores those values.
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