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

Toán Lớp 7: 19$\frac{1}{3}$ : $\sqrt[]{\frac{64}{9} }$ – 33$\frac{1}{3}$ : $\frac{16}{6}$

Toán Lớp 7: 19$\frac{1}{3}$ : $\sqrt[]{\frac{64}{9} }$ – 33$\frac{1}{3}$ : $\frac{16}{6}$

Comments ( 2 )

  1. 191/3 : \sqrt(64/9) – 331/3 : 16/6
    = 58/3 : 8/3 – 100/3 : 16/6
    = 58/3 . 3/8 – 100/3 . 6/16
    = 29 . 1/4 – 25 . 2/4
    = 29/4 – 50/4
    = (-21)/(4)

  2. Lời giải chi tiết:
    191/3:\sqrt{\frac{64}{9}}-331/3:16/6
    =191/3:8/3-331/3xx6/16
    =191/3xx3/8-331/3xx3/8
    =3/8xx(19\frac{1}{3}-33\frac{1}{3})
    =3/8xx(-14)
    =-21/4

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