题目内容
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 12 |
| 4 |
| 5 |
分析:本题按照先算括号里的,再算除法的顺序运算.
解答:解:
÷(
+
×
)
=
÷(
+
)
=
÷
=
.
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 12 |
| 4 |
| 5 |
=
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 15 |
=
| 2 |
| 3 |
| 49 |
| 60 |
=
| 40 |
| 49 |
点评:本题按照运算法则和运算顺序计算即可,注意结果化成最简分数.
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题目内容
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 12 |
| 4 |
| 5 |
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 12 |
| 4 |
| 5 |
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 15 |
| 2 |
| 3 |
| 49 |
| 60 |
| 40 |
| 49 |