1. top of the world
    Joined
    04 Jul '04
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    3603
    07 Jan '05 10:41
    Fill in the digits 1 to 9 at the positions marked [] in the following , so as to satisfy the equation.

    []/[][] + []/[][] + []/[][] = 1.
    No digit is to be repeated; each digit should be used but once.
    For example a/bc would mean a/(10*b+c).
  2. Standard memberThe Plumber
    Leak-Proof
    under the sink
    Joined
    08 Aug '04
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    12493
    07 Jan '05 18:43
    Originally posted by observantU
    Fill in the digits 1 to 9 at the positions marked [] in the following , so as to satisfy the equation.

    []/[][] + []/[][] + []/[][] = 1.
    No digit is to be repeated; each digit should be used but once.
    For example a/bc would mean a/(10*b+c).
    After trying some 2300 different combinations, this is the answer I've come up with:

    9/12 + 5/34 + 7/68 = 1
  3. H. T. & E. hte
    Joined
    21 May '04
    Moves
    3510
    08 Jan '05 10:18
    Originally posted by The Plumber
    After trying some 2300 different combinations, this is the answer I've come up with:

    9/12 + 5/34 + 7/68 = 1
    I think this is the only solution possible. .