Ratio Simplifier
Reduce a ratio of two or more numbers to its simplest form, with the shares as percentages.
Ratio simplifier
Type a ratio with colons or spaces, for example 16:9.
For example 8:12, 6 9 15 or 1.5:3
Simplest form
16 : 9
0.5625
Second number per 1 of the first
Shares of the whole
Private: Everything runs in this page. Nothing you type is sent anywhere or saved.
On this page
Ratio examples
| Ratio | Simplest form |
|---|---|
| 8:12 | 2 : 3 |
| 100:25 | 4 : 1 |
| 6:9:15 | 2 : 3 : 5 |
| 1.5:3 | 1 : 2 |
| 1920:1080 | 16 : 9 |
Formula
divide every number by the greatest common divisor (GCD) of all of them
How the ratio simplifier works
- Step oneType the ratio. Numbers can be separated by colons, spaces or semicolons. A comma inside a number is a thousands separator.
- Step twoThe tool divides every number by their greatest common divisor.
- Step threeRead the simplest form, and the share of each part.
What this tool does not do
- It reduces numbers; it does not solve ratio word problems or find a missing part.
- It accepts at most 6 decimal places.
- Negative numbers are not accepted.
Frequently asked questions
How are decimals handled?
They are scaled to whole numbers first: 1.5:3 becomes 15:30, which reduces to 1:2. Up to 6 decimal places are accepted.
What if the numbers share no divisor?
Then the ratio is already in its simplest form, as 7:13 is.
Can a part be 0?
Yes, as long as one part is more than 0. 0:5 becomes 0:1.