Matematika

Pertanyaan

tolong jawab pakai caranya ya
tolong jawab pakai caranya ya

1 Jawaban

  • ==Jawaban==

    b)  1 1/2 + 40% - 0,3 : 1/9
    = 3/2 + 40/100 - 3/10 : 1/9
    = 3/2 + 4/10 - 3/10 x 9/1
    = 3/2 + 4/10 - 27/10
    = 15/10 + 4/10 - 27/10
    = -8/10
    = -4/5

    c). 1 1/2 x 40% + 0,3 : 1/9
    = 3/2 x 40/100 + 3/10 : 1/9
    = 3/2 x 2/5 + 3/10 x 9/1
    = 6/10 + 27/10
    = 33/10
    = 3 3/10

    d). 1 1/2 : 40% - 0,3 x 1/9
    = 3/2 : 40/100 - 3/10 x 1/9
    = 3/2 : 2/5 - 3/90
    = 3/2 x 5/2 - 1/30
    = 15/4 - 1/30
    = 450/120 - 4/120
    = 446/120
    = 223/60
    = 3 43/60

    e). 1 1/2 + 40% x 0,3 : 1/9
    = 3/2 + 40/100 x 3/10 : 1/9
    = 3/2 + 2/5 x 3/10 x 9/1
    = 3/2 + 6/50 x 9/1
    = 3/2 + 54/50
    = 75/50 + 54/50
    = 129/50
    = 2 29/50

    f). 1 1/2 - 40% : 0,3 x 1/9
    = 3/2 - 40/100 : 3/10 x 1/9
    = 3/2 - 4/10 x 10/3 x 1/9
    = 3/2 - 4/3 x 1/9
    = 3/2 - 4/27
    = 81/54 - 8/54
    = 73/54
    = 1 19/54