机构地区: 广东教育学院
出 处: 《广东教育学院学报》 2005年第3期31-33,共3页
摘 要: 利用同余及带余除法解决:小数展开式最简单的分数;对任意正整数n,不用直接做小数除法,1/n的小数展开式循环节的长度的上限及相关问题. In this paper, by means of the division algorithm and congruence, firstly we discuss the fractions with the simplest decimal expansions; secondly, without having to carry out the actual calculation of the decimal, we discuss the length of the repeating part of the periodic decimal of 1/n and come to the corresponding conclusions.