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Any decimal that has only a finite number of nonzero digits is a terminating decimal. For example, 24, 0.82, and 5.096 are three terminating decimals. If rand s are positive integers and the ratio r/s is expressed as adecimal, is r/s aterminating decimal?
(1) 90＜r＜100
(2) s = 4
分析A选项
分析B选项
分析C选项
分析D选项
分析E选项
我有更好的解析 
暂无雷哥网文字解析
给出了有限小数的定义，说如果r和s是正整数，问r/s用小数表示时，是不是有限小数？
（1）分子分母都为整数时，分数能不能化成有限小数与分母无关。
（2）s=4，那么分母分子同时乘以25，分母为100，那么此时，这个数一定可以化为小数。即只要s可以转化成10^n的形式，那么这个数就可以转化成有限小数 所以选B
力争满分的kk
这题的空格实在是让人看不懂题，醉了
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2023-05-13 16:42:54
猜猜酱
你们这些答案都在说什么啊？如果跟分子无关你干嘛选B呢，B只给了一个分子的数值啊
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2022-08-16 21:35:32
700+Raina回复 柴郡
B给的是分母的数呀
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2022-11-22 23:29:57
猜猜酱
我手机上显示的是“rand x”我还想这是个什么牛逼的x，结果是”r and x ”无语破大防
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2022-08-16 21:32:59
wordy要你吗
16年的解析错误哈，（1）中，分数能否华为有限小数与分子无关，不是分母。判断方法是，只要分母的因子有2或5其中一个就可以化成有限小数。
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2022-07-26 18:47:43
213717n
关于商能否化为有限小数的题，分数可否化为有限小数与分子无关；分母可以转化为10的n次方的话，就一定可以化为有限小数。
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2021-10-14 20:06:00
SevenHundred
关于商能否化为有限小数的题，分数可否化为有限小数与分子无关；分母可以转化为10的n次方的话，就一定可以化为有限小数。
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2016-08-02 15:32:18
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