若 2/5A=B(A,B都不等于0)则A:B=( ):( )

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若2/5A=B(A,B都不等于0)则A:B=():()若2/5A=B(A,B都不等于0)则A:B=():()若2/5A=B(A,B都不等于0)则A:B=():()2/5A=BA:B=5:22:5  2

若 2/5A=B(A,B都不等于0)则A:B=( ):( )
若 2/5A=B(A,B都不等于0)则A:B=( ):( )

若 2/5A=B(A,B都不等于0)则A:B=( ):( )
2/5A=B
A:B=5:2

2:5

  2/5A=B
  A:B=1:2/5=1×5:2/5×5=5:2
A:B=5:2