How this calculator works
Enter the values for first numerator, first denominator, second numerator, second denominator, operation. The result applies the displayed method and rounds only for presentation.
Formula / method
a/b op c/d
Worked example
Worked example: First numerator = 1; First denominator = 2; Second numerator = 1; Second denominator = 3; Operation = +.
Assumptions and limitations
The inputs use the units shown and the displayed fraction calculator method applies to the situation being estimated.
This fraction calculator uses the stated formula and supplied units; unusual inputs, local rules or professional context can change the interpretation.