题目内容
| 3 |
| 5 |
| 1 |
| 4 |
| 2 |
| 7 |
| 7 |
| 20 |
分析:根据分数的四则混合运算顺序进行计算,即可得到答案.
解答:解:
÷[(
+
)×
]
=
÷{
×
}
=
÷
=3
.
| 3 |
| 5 |
| 1 |
| 4 |
| 2 |
| 7 |
| 7 |
| 20 |
=
| 3 |
| 5 |
| 15 |
| 28 |
| 7 |
| 20 |
=
| 3 |
| 5 |
| 3 |
| 16 |
=3
| 1 |
| 5 |
点评:此题主要考查的是分数的四则混合运算.
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题目内容
| 3 |
| 5 |
| 1 |
| 4 |
| 2 |
| 7 |
| 7 |
| 20 |
| 3 |
| 5 |
| 1 |
| 4 |
| 2 |
| 7 |
| 7 |
| 20 |
| 3 |
| 5 |
| 15 |
| 28 |
| 7 |
| 20 |
| 3 |
| 5 |
| 3 |
| 16 |
| 1 |
| 5 |