27/13*()=8/3*()=6/5*（）=1
27/13*()=8/3*()=6/5*（）=1
是倒数里的
是倒数里的
数学人气：956 ℃时间：2020-03-30 00:34:52
优质解答
27/13*(13/27)=8/3*(3/8)=6/5*（5/6）=1
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