Treść zadania

Megic

5 3/4-3 3/10 =
1/6+3/4-3/8 =
1/5+3/4+3/10 =
3 1/2-1 2/3 =
2 1/3-1 1/4 =
1 1/2-1/3 =
4 2/3-1 4/6-1/4 =
4 1/4 -[1 2/5+4/5] =
16/21+2 5/7+1 8/21 =
1 1/5+3 4/10-17/20 -
3/4+1/6 =
3/4-1/3 =

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Rozwiązania

  • sonar

    5 i 3/4-3i 3/10 =

    5 i 15/20 - 3 i 6/20=

    = 2 i 9/20





    1/6+3/4-3/8 =

    = 4/24 + 18/24 - 9/24=

    = 22/24 - 9/24=

    = 13/24






    1/5+3/4+3/10 =

    = 4/20 + 15/20 + 6/20=

    = 19/20 + 6/20=

    = 25/20=

    = 1 i 5/20=

    = 1 i 1/4






    3 i 1/2-1 i 2/3 =

    = 3 i 3/6 - 1 i 4/6 =

    = 2 i 9/6 - 1 i 4/6=

    = 1 i 5/6






    2 i 1/3-1 i 1/4 =

    = 2 i 4/12 - 1 i 3/12=

    = 1 i 1/12





    1 i 1/2-1/3 =

    = 1 i 3/6 - 2/6=

    = 1 i 1/6





    4 i 2/3-1 i 4/6-1/4 =

    = 4 i 8/12 - 1 i 8/12 - 3/12=

    = 3 - 3/12=

    = 2 i 12/12 - 3/12=

    = 2 i 9/12=

    = 2 i 3/4





    4 i 1/4 -[1 i 2/5+4/5] =

    = 4 i 1/4 - 1 i 6/5=

    = 4 i 1/4 - 2 i 1/5=

    = 4 i 5/20 - 2 i 4/20=

    = 2 i 1/20





    16/21+2 i 5/7+1 i 8/21 =

    = 16/21 + 2 i 15/21 + 1 i 8/21=

    = 3 i 39/21=

    = 4 i 18/21=

    = 4 i 6/7




    1 i 1/5+3 i 4/10-17/20 -

    = 1 i 4/20 + 3 i 8/20 - 17/20=

    = 4 i 12/20 - 17/20=

    = 3 i 32/20 - 17/20=

    = 3 i 15/20 =

    = 3 i 3/4





    3/4+1/6 =

    = 9/12 + 2/12=

    = 11/12




    3/4-1/3 =

    = 9/12 - 4/12=

    = 5/12

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