( )÷12=20/( )=3/4=32/( )=( )/30?( )÷12=二十分之几?=三分之四=三十二分之几?=多少分之30?
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( )÷12=20/( )=3/4=32/( )=( )/30?( )÷12=二十分之几?=三分之四=三十二分之几?=多少分之30?
( )÷12=20/( )=3/4=32/( )=( )/30?
( )÷12=二十分之几?=三分之四=三十二分之几?=多少分之30?
( )÷12=20/( )=3/4=32/( )=( )/30?( )÷12=二十分之几?=三分之四=三十二分之几?=多少分之30?
9
80/3
128/3
45/2