Matematika

Pertanyaan

1.) 1/2 dan 1/3=
2.) 1 2/3 + 2 2/5 × 3/4 =
3 ) 6/14 : 6/12 =
4.) 12/25=.......%

tolong bantu pr saya pake cara...trmksh.

2 Jawaban

  • 1.) 1/2 dan 1/3= ???
    2.) 1 2/3 + 2 2/5 × 3/4 
    = 1 2/3 + 12/5 x 3/4
    = 1 2/3 + 9/5
    =1 2/3 + 1 4/5
    = 1 10/15 + 1 12/15
    = 2 22/15
    = 3 7/15
    3 ) 6/14 : 6/12 = 6/14 x 12/6 = 6/7
    4.) 12/25= 12/25 x 100 = 48 %
  • 1 mana tanda nya
    2 1 2/3 + 2 2/5 × 3/4
    = 1 2/3 + 12/5 × 3/4
    = 1 2/3 + 36/20
    = 1 2/3 + 9/5
    = 1 2/3 + 1 4/5
    = (1 + 1) + (2/3 + 4/5)
    = 2 + (10/15 + 12/15)
    = 2 + 22/15 = 2 + 1 7/15 = 3 7/15
    3 6/14 : 6/12
    = 6/14 × 12/6
    = 72/84
    = 6/7
    4 12/25
    = 12/25 × 4/4
    = 48/100 = 48%

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