Math and Physics Calculators

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Reduce and Convert Fractions

Reduce fractions and turn decimal fractions (e.g. 0.5) into ordinary fractions (e.g. 1/2).

decimal fraction:

ordinary fraction:


Please enter either a value for the decimal fraction or two integers for the ordinary fraction. It will be converted and reduced at the same time. The maximum accuracy is 8 decimal places.

Inverse inverts the ordinary fraction and the decimal fraction.

Convert Improper Fraction and Mixed Number

Those are fractions larger than 1. An improper fraction is something like 13/5, the according mixed number is 2 3/5.

Improper fraction:
Mixed number:

Please enter either two natural values for the improper fraction or three natural values for the mixed number. The fraction won't be reduced, this can be done eith the upper calculator.

Add, Subtract, Multiply or Divide Fractions

Please enter only integers and choose the calculation type. For negative values, put a - in numerator or denominator (not in both!).


The calculators use . and , als decimal separators.

Formulary and calculators math and physics.
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