Matematika

Pertanyaan

pliss jawab ya pake cara soalnya bsk mau ngumpul
1. -170 -(-42)×9 +87=
2. -180 - (-37) × 8 + 98 =
3. 2 6/12 + 3 2/3 + 3/7 =

2 Jawaban

  • 1. -170 - (-42) x 9 + 87
    = -170 + 42 x 9 + 87
    = -170 + 378 + 87
    = -170 + 465
    = 295

    2. -170 - (-37) x 8 + 98
    = -170 + 37 x 8 + 98
    = -170 + 296 + 98
    = -170 + 394
    = 224

    3. 2 6/12 + 3 2/3 + 3/7
    = 26/12 + 11/3 + 3/7
    = 546 + 924 + 108/252
    = 1578/252
    = 6 66/252
    = 6 11/42
  • 1. -170 - (-42) x 9 + 87 =
    -170+ 42 x 9 + 87
    -170 + 378 +87
    -170+465 = 295

    2. -180-(-37)x8+98=
    -180+37x8+98
    -180+296+98
    -180+394 = 214

    3. 2 6/12 + 3 2/3 + 3/7 =
    30/12 + 11/3 + 3/7
    210/84 + 308/84 + 36/84
    554/84 = 6 50/84

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