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

Toán Lớp 7: 11/125+[17/14-5/7]-[17/18- -4/9]

Toán Lớp 7: 11/125+[17/14-5/7]-[17/18- -4/9]

Comments ( 2 )

  1. text{Giải đáp + Lời giải và giải thích chi tiết}
    11/125+[17/14-5/7]-[17/18–4/9]
    =11/125+[17/14-10/14]-[17/18+4/9]
    =11/125+[17/14-10/14]-[17/18+8/18]
    =11/125+7/14-25/18
    =2772/31500+15750/31500-43750/31500
    =(-25228)/31500
    =-901/1125
     

  2. 11/125+(17/14−5/7)−(17/18−−4/9)
    =11/125+(17/14−10/14)−(17/18+8/18)
    =11/125+7/14−25/18
    =-901/1125

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

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