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

Toán Lớp 7: B=(5/2*1)+(4/1*11)+(3/11*2)+(13/15*4) Giúp mik với ạ

Toán Lớp 7: B=(5/2*1)+(4/1*11)+(3/11*2)+(13/15*4)
Giúp mik với ạ

Comments ( 1 )

  1. B=(5/2.1)+(4/1.11)+(3/11.2)+(13/15.4)
    B=[(5/2.1)+(3/11.2)]+(13/15.4)+(4/1.11)
    B=(29/11+4/11)+13/60
    B=33/11+13/60
    B=$\dfrac{33+13}{60}$ 
    B=46/660
    B=23/330

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