Re: Three rational triples

Keith F. Lynch used his keyboard to write :

I discovered that these three sets of three positive rationals have an
interesting property in common:
>
9/2, 4/3, 7/6
>
49/15, 25/21, 54/35
>
49/2, 4/7, 27/14
>
If nobody figures it out, I will provide the answer in a week.

normalizing to lowest common denominator I get
 27/6     8/6     7/6
343/105 125/105 162/105
343/14    8/14   27/14
where the numerator of first and second is a cube and the third is not :-)
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