20 into 11 best min fragment found: 13/3
  Cut up 20 sticks of length 11 like this:
    2 x (16/3 + 17/3)
    2 x (5 + 6)
    2 x (14/3 + 19/3)
    14 x (13/3 + 20/3)
  Reassemble as 11 sticks of length 20 like this:
    4 x (20/3 + 20/3 + 20/3)
    1 x (13/3 + 13/3 + 17/3 + 17/3)
    2 x (13/3 + 13/3 + 16/3 + 6)
    2 x (13/3 + 13/3 + 5 + 19/3)
    2 x (13/3 + 13/3 + 14/3 + 20/3)