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求比值的题
3/4:7/8 3/5:0.27 3.5:2/5
人气:461 ℃ 时间:2020-05-23 03:16:46
解答
3/4:7/8
=6/8:7/8
=6:7
3/5:0.27
=3/5:27/100
=60/100:27/100
=60:27
=20:9
3.5:2/5
=7/2:2/5
=35/10:4/10
=35:4
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