题目内容
(2011?海州区模拟)
=
=
| 5 |
| 8 |
| () |
| 16 |
62.5
62.5
%=40:64
64
=0.625
0.625
(填小数)分析:解决此题关键在于
,
的分子和分母同时乘2可化成
,
可化成5:8,比的前项和后项同时乘8可化成40:64,
用分子除以分母得小数商为0.625,0.625可化成62.5%.由此进行填空.
| 5 |
| 8 |
| 5 |
| 8 |
| 10 |
| 16 |
| 5 |
| 8 |
| 5 |
| 8 |
解答:解:
=
=62.5%=40:64=0.625(填小数).
故答案为:10,62.5,64,0.625.
| 5 |
| 8 |
| 10 |
| 16 |
故答案为:10,62.5,64,0.625.
点评:此题考查小数、分数、百分数之间的转化,根据它们之间的关系和性质进行转化即可.
练习册系列答案
相关题目