题目内容
将下列分数化为小数,如果不能化成有限小数,将其保留三位小数:
| 3 |
| 4 |
0.75
0.75
;| 6 |
| 23 |
0.261
0.261
;| 5 |
| 11 |
0.455
0.455
;| 41 |
| 100 |
0.41
0.41
.分析:把分数化小数,用分数的分子除以分母即得小数商,除不尽时按照要求保留三位小数.
解答:解:
=3÷4=0.75;
=6÷23≈0.261;
=5÷11≈0.455;
=41÷100=0.41;
故答案为:0.75,0.261,0.455,0.41.
| 3 |
| 4 |
| 6 |
| 23 |
| 5 |
| 11 |
| 41 |
| 100 |
故答案为:0.75,0.261,0.455,0.41.
点评:此题考查分数化小数方法的灵活运用,属于基本题,要掌握方法.
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