2023-07-26 10:45发布
0.8:1/2=(4/5)/(1/2)=8/5或8:5#p#结果是8:5。#p#0.8:1/2=(0.8×10):(1/2×10)=8:58:5=8/5=1又3
0.8:1/2=(4/5)/(1/2)=8/5或8:5
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0.8:1/2=(4/5)/(1/2)=8/5或8:5
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