题目内容
化简比并求比值.
:
0.8﹕1.2
0.125﹕
.
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0.8﹕1.2
0.125﹕
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0.8:1.2=8:12=(8÷4):(12÷4)=2:3,
0.8:1=0.8÷1.2=
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0.125﹕
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0.125﹕
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