题目内容
| 11 |
| 12 |
| 1 |
| ( ) |
| 1 |
| ( ) |
| 1 |
| ( ) |
分析:先把
拆成:
=
=
+
,再把
拆成:
=
=
+
=
+
,然后解答即可.
| 11 |
| 12 |
| 11 |
| 12 |
| 5+6 |
| 12 |
| 5 |
| 12 |
| 1 |
| 2 |
| 5 |
| 12 |
| 5 |
| 12 |
| 2+3 |
| 12 |
| 2 |
| 12 |
| 3 |
| 12 |
| 1 |
| 6 |
| 1 |
| 4 |
解答:解:
=
,
=
+
+
,
=
+
+
;
故答案为:6,4,2.
| 11 |
| 12 |
| 2+3+6 |
| 12 |
=
| 2 |
| 12 |
| 3 |
| 12 |
| 6 |
| 12 |
=
| 1 |
| 6 |
| 1 |
| 4 |
| 1 |
| 2 |
故答案为:6,4,2.
点评:本题考查了分数的拆项,规律是:把分子拆分为分母的因数的和或差的形式.
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