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+9 into 7: min fragment 5/2 [v1-66-g4e22cc3]
+ Cut up 9 sticks of length 7 like this:
+ 6 x (9/2 + 5/2)
+ 2 x (4 + 3)
+ 1 x (7/2 + 7/2)
+ Reassemble as 7 sticks of length 9 like this:
+ 3 x (9/2 + 9/2)
+ 2 x (4 + 5/2 + 5/2)
+ 2 x (7/2 + 3 + 5/2)