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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 7: 1/6.9/-8(-12/11)Và (-5).-6/13.-9/10.(-13/16)Mik đang cần gấp ạ

Toán Lớp 7: 1/6.9/-8(-12/11)Và (-5).-6/13.-9/10.(-13/16)Mik đang cần gấp ạ

Comments ( 1 )

  1. a, 1/6 . 9/-8 . (-12/11)
    = -3/16 . (-12/11)
    = 9/44
    ——————-
    b, (-5) . -6/13 . -9/10 . (-13/16)
    =30/13 . -9/10 . (-13/16)
    =30/13 . (-13/16) . -9/10
    =-15/8 . -9/10
    = 27/16
     

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222-9+11+12:2*14+14 = ? ( )