UK units & maths · Your inputs

Ratio simplifier calculator UK

Reduce a two-part whole-number ratio and show each share of the total. Check the formula, worked example and limits before using your own figures.

Enter your figures

Your estimate

First term of simplified ratio

2 parts
Second term3 parts
First share40%
Second share60%

Use your actual figures. Any prefilled price, fee, rate or return is an editable illustration, not a current product quote. Two positive whole numbers only. The result is shown as first term and second term, rather than treating a ratio as a monetary amount.

How the ratio simplifier calculator uk works

Divide both terms by their greatest common divisor; percentage shares use a/(a+b) and b/(a+b).

Data basis: mathematical formula using your inputs. Example prices and rates are illustrative, not current market quotes.

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Worked example: ratio simplifier

This illustration uses the calculator’s example inputs. It is not a quote or a recommended financial decision.

First whole-number amount
12
Second whole-number amount
18

First term of simplified ratio: 2 parts

Divide both terms by their greatest common divisor; percentage shares use a/(a+b) and b/(a+b).

Ratio simplifier: questions answered

What does the ratio simplifier calculation include?

Divide both terms by their greatest common divisor; percentage shares use a/(a+b) and b/(a+b). Use your actual figures. Any prefilled price, fee, rate or return is an editable illustration, not a current product quote. Two positive whole numbers only. The result is shown as first term and second term, rather than treating a ratio as a monetary amount.

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Using your result

Example inputs are a starting point. Replace them with your figures and select Calculate result. Results are rounded for display; calculations use unrounded values.

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