题目内容
| 5 |
| 3 |
| 10 |
| () |
| () |
| 12 |
| () |
| 3 |
15
15
÷9≈1.67
1.67
.分析:解答这道题的突破口是
,
=
,
=
,
=1
,
=( )÷9,
≈( )分别计算出来即可.
| 5 |
| 3 |
| 5 |
| 3 |
| 10 |
| () |
| 5 |
| 3 |
| () |
| 12 |
| 5 |
| 3 |
| () |
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
解答:解:
=
=
=1
=15÷9≈1.67;
故答案为:6,20,2,15,1.67.
| 5 |
| 3 |
| 10 |
| 6 |
| 20 |
| 12 |
| 2 |
| 3 |
故答案为:6,20,2,15,1.67.
点评:本题运用分数的基本性质进行计算即可.
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