题目内容
| 5 |
| 12 |
| 2 |
| 3 |
| 5 |
| 12 |
| 1 |
| 5 |
| 2 |
| 3 |
| 2 |
| 3 |
| 1 |
| 5 |
| 1 |
| 5 |
| 5 |
| 12 |
| 5 |
| 12 |
| 13 |
| 36 |
| 13 |
| 36 |
分析:根据乘法分配律即可解决.
解答:解:
×
+
×
=(
+
)×
=
×
=
;
故答案为:
,
,
,
.
| 5 |
| 12 |
| 2 |
| 3 |
| 5 |
| 12 |
| 1 |
| 5 |
=(
| 2 |
| 3 |
| 1 |
| 5 |
| 5 |
| 12 |
=
| 13 |
| 15 |
| 5 |
| 12 |
=
| 13 |
| 36 |
故答案为:
| 2 |
| 3 |
| 1 |
| 5 |
| 5 |
| 12 |
| 13 |
| 36 |
点评:本题考查了分数的简便计算,关键是乘法分配律的灵活应用.
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