We need to divide each number of the ratio with same number.
First we'll start with 2.
It can be 18/2 30/2 72/2
That gives us 9:15:36
We use two because its the samples samples number plus we need to simplify the problem.
Now for further simplification we cannot use 2 because 15 isn't divisible by 2, so we'll use the next number 3.
So, 3:5:12. That's the max it can be simplified.
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