Matematika

Pertanyaan

A. 3/8 - 1/4 = ....
B. 7/30 + 3/20 - 4 2/3 = .....
C. 7 1/3 - 6 7/8 = .....
D. 4/9 + 11/18 + 1 5/27 - 4 2/3
Jawabannya pakai jalan ya.......

1 Jawaban

  • a. 3/8 - 1/4 = 3/8 - 2/8 = 1/8

    b.7/30 + 3/20 - 4 2/3

    7/30 + 3/20 - 14/3

    14/60 + 9/60 - 280/60

    23/60 - 280 /60 = - 257/60 = - 4 17/60

    c.7 1/3 - 6 7/8 = 22/3 - 55/8 =

    176/24 - 165/24 = 11/24

    d.4/9 + 11/18 - 1 5/27 - 4 2/3

    8/18 +11/18 - 32/27 - 14/3

    19/18 - 32/27 - 14/3

    19/18 - ( 32/27 - 126/27 )

    19/18 - (- 94/27)

    19/18 + 94/27

    57/54 + 188/54

    245/54 = 4 29/54


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