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

Toán Lớp 6: 6/7+5/8:5-3/6.(-2)^2 giải giúp mik

Toán Lớp 6: 6/7+5/8:5-3/6.(-2)^2
giải giúp mik

Comments ( 2 )

  1. $\frac{6}{7}$ + $\frac{5}{8}$ : 5 – $\frac{3}{6}$ . $(-2)^{2}$
    = $\frac{6}{7}$ + $\frac{5}{8}$ . $\frac{1}{5}$ – $\frac{1}{2}$ . 4
    = $\frac{6}{7}$ + $\frac{1}{8}$ – 2
    = $\frac{-57}{56}$ 
    Chúc bạn học tốt!!!!!
     

  2. $\frac{6}{7}$ + $\frac{5}{8}$ :  5 – $\frac{3}{6}$ . (-2)² 
    = $\frac{6}{7}$ + $\frac{5}{8}$ . $\frac{1}{5}$ – $\frac{1}{2}$ . 4
    = $\frac{6}{7}$ + $\frac{1}{8}$ – 2
    = $\frac{48}{56}$ + $\frac{7}{56}$ – $\frac{112}{56}$ 
    = $\frac{48 + 7 – 112}{56}$
    = $\frac{-57}{56}$ 
     

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

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