Use this calculator to verify a hand calculation, normalize a value before another tool, or make the exact arithmetic convention explicit in a reproducible workflow.

Numerator

An integer input.

Denominator

An integer input.

The formula below determines the tool output. Decimal value: The calculated decimal value.^[1]

Calculations use JavaScript number arithmetic. Binary floating-point representation can make some decimal results inexact, and values outside the supported numeric range can overflow or lose precision. Round only for presentation unless the selected rounding tool is itself the intended operation.

Use the inverse operation to check a result when one exists: addition pairs with subtraction, multiplication with division, and powers with roots. For rounding or normalization tools, retain the unmodified value when later calculations still require full precision.

• Fractional and Integer Parts Calculator

  Split a finite number into truncating integer and signed fractional parts.

• Divide Two Numbers Calculator

  Divide one finite number by another nonzero number.

• Ratio to Percentage Converter

  Convert a ratio to a percentage by multiplying by one hundred.