琼不101二窥 春芽
共回答了19个问题采纳率:89.5% 举报
(12-4)÷12=[2/3];12×(1-[1/3])=8(吨);答:用去[2/3],还剩4吨;用去8吨,还剩[1/3];故答案为:[2/3],8.
点评:本题考点: 分数除法应用题. 考点点评: 解答此题用到的知识点:(1)求一个数是另一个数的几分之几是多少,用除法解答;(2)求一个数的几分之几是多少,用乘法解答.
1年前
如此痴情的男人 幼苗
共回答了1374个问题 举报
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你能帮帮他们吗
四边形ABCD中,A(1,1),B(3/2,0),C(2,3),D(-5/2,2),则该四边形面积为
用 惴惴不安 造句
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求地道的英文翻译 “这个水龙头一直在漏水/ 流水 / 滴答水.”
若a=分母1—(-1)m方 分子2(m为正数),且ab互为相反数,bc互为倒数,试求ab+b的m方—(b—c)的2m方的
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