Math & Numbers
Ratio Calculator
Simplify a ratio of two whole numbers using their greatest common divisor.
How to use the ratio calculator
Simplify a ratio of two whole numbers using their greatest common divisor. Enter the requested values and select Calculate result. Check the units and options before interpreting the answer.
Formula and calculation method
Divide both ratio terms by their greatest common divisor (GCD).
Worked example
12:18 simplifies to 2:3 by dividing both terms by 6.
Limitations and interpretation
Results depend on inputs, assumptions and rounding. Verify results before using them for consequential decisions. Health estimates are not medical diagnoses.
Frequently asked questions
Can a ratio include zero?
One term can be zero, but both cannot be zero.
What are equivalent ratios?
Ratios that express the same relationship.