So sánh các dãy phân số sau: a) 1/2, -2/3,3/4,-4/5 b) 1/2,3/5,-4/3,-9/8 c) 3/2,3/4,4/5,-7/20 d) 1/2,-2/3,5/6,-7/18 giúp mik vs ak

Question

So sánh các dãy phân số sau:
a) 1/2, -2/3,3/4,-4/5
b) 1/2,3/5,-4/3,-9/8
c) 3/2,3/4,4/5,-7/20
d) 1/2,-2/3,5/6,-7/18
giúp mik vs ak

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Calantha 9 months 2021-04-23T22:33:00+00:00 2 Answers 33 views 0

Answers ( )

    0
    2021-04-23T22:34:11+00:00

    Đáp án:

     a,1/2=30/60

    -2/3=-40/60

    3/4=45/60

    -4/5=-48/60

     => 3/4>1/2>-2/3>-4/5

    b,1/2=60/120

    3/5=72/120

    -4/3=-160/120

    -9/8=-135/120

    =>3/5>1/2>-9/8>-4/3

    c,3/2=30/20

    3/4=15/20

    4/5=16/20

    -7/20=-7/20

    =>3/2>4/5>3/4>-7/20

    d,1/2=9/18

    -2/3=-12/18

    5/6=15/18

    -7/18=-7/18

    =>5/6>1/2>-7/18>-2/3

    0
    2021-04-23T22:34:28+00:00

    Đáp án:

     

    Giải thích các bước giải:

     Cho mik xin 5 sao và CTLHN ạ

    so-sanh-cac-day-phan-so-sau-a-1-2-2-3-3-4-4-5-b-1-2-3-5-4-3-9-8-c-3-2-3-4-4-5-7-20-d-1-2-2-3-5-6

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