问糖占糖水的几分之几?
50÷(50+400)
=50÷450
=1/9
水占糖水的几分之几?
1-1/9=8/9
糖是水的几分之几?
50÷400=1/8
50克糖放入400克水中,问糖占糖水的几分之几?水占糖水的几分之几?糖是水的几分
50克糖放入400克水中,问糖占糖水的几分之几?水占糖水的几分之几?糖是水的几分
数学人气:542 ℃时间:2019-11-06 15:49:49
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