Math calculator

Ratio Calculator Formula Guide

Simplify ratios and compare two quantities with a clean reduced form.

FormulaSimplified ratio = A / gcd(A, B) : B / gcd(A, B)

Formula

Ratio simplification

Simplified ratio = A / gcd(A, B) : B / gcd(A, B)

The ratio 12:18 simplifies to 2:3.

FAQ6 common questions for this calculator.

FAQs

What is a ratio?+

A ratio compares two quantities by division.

Can decimals be used?+

This simple version works best with whole-number quantities.

How does the Ratio Calculator calculate the result?+

For the Ratio Calculator, it uses the Ratio simplification: Simplified ratio = A / gcd(A, B) : B / gcd(A, B). The ratio 12:18 simplifies to 2:3.

What information do I need to use the Ratio Calculator?+

For the Ratio Calculator, enter the known quantities requested by the calculator and use the units implied by the Ratio simplification. If a value is unknown, choose a calculator that solves for that specific variable.

How accurate is the Ratio Calculator?+

Ratio Calculator is mathematically reliable for the entered values and selected operation. It follows the Ratio simplification. Rounding, order of operations, and undefined cases can still affect interpretation.

What should I check before using the Ratio Calculator result?+

For the Ratio Calculator, check the input values, operation order, rounding precision, and undefined cases before using the result. Compare one changed value at a time when testing scenarios.

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Math guide

How to use the Ratio Calculator

Simplify ratios and compare two quantities with a clean reduced form. The page also explains the ratio simplification and shows a practical example: The ratio 12:18 simplifies to 2:3.

  1. 1

    Enter your details

    Enter a clean reduced form, then complete any other fields shown in the calculator.

  2. 2

    Check the calculation

    Review the result alongside the ratio simplification: Simplified ratio = A / gcd(A, B) : B / gcd(A, B).

  3. 3

    Compare scenarios

    Change one or more inputs to see how they affect the ratio Calculator result before you use the estimate.