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

Toán Lớp 5: 5/7+4/9 giúp mình y nha mọi người

Toán Lớp 5: 5/7+4/9 giúp mình y nha mọi người

Comments ( 2 )

  1. 5/7 + 4/9
    = 45/63 + 28/63
    = (45+28)/63
    = 73/63
    #wcdi
     

  2. $\frac{5}{7}$+$\frac{4}{9}$=$\frac{45}{63}$+$\frac{28}{63}$
                                                $\frac{73}{63}$ 
     

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

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