
4÷()=()÷12=9:()=5/()=25%
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4÷()=()÷12=9:()=5/()=25%
解:4÷()=25%
()=16
()÷12=25%
()=3
9:()=25%
()=36
5/()=25%
()=20
综上所述:4÷(16)=(3)÷12=9:(36)=5/(20)=25%
解:4÷()=25%
()=16
()÷12=25%
()=3
9:()=25%
()=36
5/()=25%
()=20
综上所述:4÷(16)=(3)÷12=9:(36)=5/(20)=25%
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