题目内容
| 1 |
| 3 |
| 8 |
| 9 |
| 2 |
| 3 |
| 8 |
| 9 |
分析:此题运用乘法分配律进行简算即可.
解答:解:
×
+
×
=(
+
)×
=1×
=
| 1 |
| 3 |
| 8 |
| 9 |
| 2 |
| 3 |
| 8 |
| 9 |
=(
| 1 |
| 3 |
| 2 |
| 3 |
| 8 |
| 9 |
=1×
| 8 |
| 9 |
=
| 8 |
| 9 |
点评:此题考查了乘法分配律在分数运算中的运用.
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