题目内容
〔3.5-（
+0.96÷
）×
〕÷
．
| 7 |
| 10 |
| 16 |
| 5 |
| 19 |
| 7 |
| 22 |
| 7 |
分析：完成本题要先将式中的小数化为分数后，再据四则混合运算法则进行计算．
解答：解：〔3.5-（
+0.96÷
）×
〕÷
=[
-（
+
×
）×
）×
，
=[
-1×
]×
，
=
×
-
×
，
=
-
，
=
．
| 7 |
| 10 |
| 16 |
| 5 |
| 19 |
| 7 |
| 22 |
| 7 |
=[
| 7 |
| 2 |
| 7 |
| 10 |
| 24 |
| 25 |
| 5 |
| 16 |
| 19 |
| 7 |
| 7 |
| 22 |
=[
| 7 |
| 2 |
| 19 |
| 7 |
| 7 |
| 22 |
=
| 7 |
| 2 |
| 7 |
| 22 |
| 19 |
| 7 |
| 7 |
| 22 |
=
| 49 |
| 44 |
| 19 |
| 22 |
=
| 1 |
| 4 |
点评：在完成此类含有分数的四则混合运算时，要注意通分约分，结果要化为最简分数．
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