m:n if 3m-2n:2m-n=3
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Step-by-step explanation:
(3 m - 2 n) / (2 m - n) = 3
3m - 2n = 3 (2m - n)
3m - 2n = 6m - 3n
3m -6m = -3n + 2n
-3m = - n
m/n = 1/3
m : n = 1 : 3
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