Matematika

Pertanyaan

1. 2 1/2:1/5 adalah
2.5/8+1,75+6,45=
3.2 8/12+1 5/6=
4.12/18-4/9=

1 Jawaban

  • No 1 )
    2 1/2 : 1/5
    =5 / 2 × 5/1
    =25 / 2
    =12 1/2

    No 2 )
    5/8 + 1 3/4 + 129 / 20
    =(5 / 8 + 7 / 4 )+ 129 / 20
    =(5/8 + 14/8) + 129 / 20
    =19 / 8 + 129 / 20
    =95 / 40 + 258 / 40
    =353 / 40
    =8 7/8

    No 3)
    2 8/12 + 1 5/6
    =32 / 12 + 11/6
    =32 / 12 + 22 / 12
    =54 / 12
    =4 1/2


    No 4)
    12 / 18 - 4/9
    =2/3 - 4/9
    =6/9 - 4/9
    =2/9

    #semogamembantu

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