1. Joined
    08 Dec '03
    Moves
    3140
    27 Jun '04 22:46
    Express one half using all the digits from 1 to 9.

    -Ray.
  2. Joined
    29 Feb '04
    Moves
    22
    27 Jun '04 23:05
    Using all the digits from 1 to 9 ONCE ONLY?

    .
  3. Joined
    08 Dec '03
    Moves
    3140
    27 Jun '04 23:13
    Originally posted by THUDandBLUNDER
    Using all the digits from 1 to 9 ONCE ONLY?

    .
    Yes, sir.

    You may use any mathematical symbol(s) that you wish, but you must ensure that each digit from 1 to 9 is used once and only once.

    -Ray.
  4. Standard memberNemesio
    Ursulakantor
    Pittsburgh, PA
    Joined
    05 Mar '02
    Moves
    32455
    28 Jun '04 01:06
    ((9-8)+(7-4)-(3-1)-(6-5))/2 =

    (1+3-2-1)/2 =

    1/2

    Nemesio
  5. Joined
    08 Dec '03
    Moves
    3140
    28 Jun '04 02:54
    Originally posted by nemesio
    ((9-8)+(7-4)-(3-1)-(6-5))/2 =

    (1+3-2-1)/2 =

    1/2

    Nemesio
    Well done.

    Note that this is not the particular solution that I was looking for, but it certainly satisfies the initial conditions. So, I'll leave this problem open if anyone wishes to come up with another solution.

    -Ray.
  6. Joined
    26 Apr '03
    Moves
    25822
    28 Jun '04 18:462 edits
    1/2-3-4+5-6+7-8+9
    (12-34.5+67)/89
  7. Joined
    08 Dec '03
    Moves
    3140
    28 Jun '04 19:17
    Originally posted by iamatiger
    1/2-3-4+5-6+7-8+9
    (12-34.5+67)/89
    Excellent!

    However, there is still at least one more solution. 🙂

    -Ray.
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