A familiar situation
Scale a paint or drink mixture while keeping the original ratio between ingredients.
How to use this calculator
- Enter first ratio part, second ratio part, total to split.
- Select Calculate to see the answer and its breakdown.
- Keep a scenario, change an input and compare the results.
Use consistent units and check the assumptions below before applying the result.
How ratio is calculated
For positive parts a:b, divide both by gcd(a,b). Given a total T, the first share is T×a/(a+b) and the second is T×b/(a+b). A 2:3 mixture totaling 20 units contains 8 units of the first part and 12 of the second.
Simplify a:b by gcd(a,b); split total T into Ta/(a+b) and Tb/(a+b).A 2:3 mixture totaling 20 units contains 8 units of the first part and 12 of the second.
Assumptions & useful context
The result depends on the values you enter and the method described above. Displayed numbers may be rounded; calculations use the unrounded values. Check that this model matches your situation before relying on it.
Frequently asked questions
Does 2:3 mean two divided by three?
It describes relative quantities; its value as a fraction is 2/3.
Can one part be zero?
Yes; the output still describes the resulting split, provided both parts are not zero.