()/16=5/()=10/20=()÷56 20÷()=4/()=()/54

问题描述:

()/16=5/()=10/20=()÷56 20÷()=4/()=()/54

(8)/16=5/(10)=10/20=(28)÷56
20÷(25)=4/(5)=(1)/54