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

Toán Lớp 5: 2 1/3 x 5 1/4 = helppppppppppppppppppppp

Toán Lớp 5: 2 1/3 x 5 1/4 =
helppppppppppppppppppppp

Comments ( 2 )

  1. 2 1/3 x 5 1/4 = 7/3 x 21/ 4 = 7/1 x 7/4 = 49/4

  2. 2(1)/(3)xx5(1)/(4)
    =7/3xx(21)/4
    =(7xx21)/(3xx4)
    =(147)/(12)
    =(49)/4
     

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