分数1／1，1／2，1／3……1／40中共有＿个数可以化成混循环小数？

显示全部楼层 · 2007-1-11 22:36:12

1/1.000000=1.0000000000000001/2.000000=0.5000000000000001/3.000000=0.3333333333333331/4.000000=0.2500000000000001/5.000000=0.2000000000000001/6.000000=0.1666666666666671/7.000000=0.1428571428571431/8.000000=0.1250000000000001/9.000000=0.1111111111111111/10.000000=0.1000000000000001/11.000000=0.0909090909090911/12.000000=0.0833333333333331/13.000000=0.0769230769230771/14.000000=0.0714285714285711/15.000000=0.0666666666666671/16.000000=0.0625000000000001/17.000000=0.0588235294117651/18.000000=0.0555555555555561/19.000000=0.0526315789473681/20.000000=0.0500000000000001/21.000000=0.0476190476190481/22.000000=0.0454545454545451/23.000000=0.0434782608695651/24.000000=0.0416666666666671/25.000000=0.0400000000000001/26.000000=0.0384615384615381/27.000000=0.0370370370370371/28.000000=0.0357142857142861/29.000000=0.0344827586206901/30.000000=0.0333333333333331/31.000000=0.0322580645161291/32.000000=0.0312500000000001/33.000000=0.0303030303030301/34.000000=0.0294117647058821/35.000000=0.0285714285714291/36.000000=0.0277777777777781/37.000000=0.0270270270270271/38.000000=0.0263157894736841/39.000000=0.0256410256410261/40.000000=0.025000000000000自己查吧.....................

千问 · 2007-1-11 22:36:12

我们老师说所有的分数都可化为循环小数，只要你去除。

千问 · 2007-1-11 22:36:12