17 into 13 best min fragment found: 9/2
  Cut up 17 sticks of length 13 like this:
    1 x (13/2 + 13/2)
    2 x (11/2 + 15/2)
    4 x (5 + 8)
    10 x (9/2 + 17/2)
  Reassemble as 13 sticks of length 17 like this:
    5 x (17/2 + 17/2)
    2 x (5 + 11/2 + 13/2)
    2 x (9/2 + 5 + 15/2)
    4 x (9/2 + 9/2 + 8)