题目内容
计算:
= .
4
| ||||||
13+
|
考点:繁分数的化简
专题:运算顺序及法则
分析:分别求出分子,分母,再根据分子除以分母即可.
解答:
解:分子:4
÷2
+
=
÷
+
=
×
+
=
+
=
,
分母:13+
-3.75×3
=13+
-
=
,
÷
=
×
=
.
故答案为:
.
| 1 |
| 2 |
| 4 |
| 7 |
| 1 |
| 6 |
=
| 9 |
| 2 |
| 18 |
| 7 |
| 1 |
| 6 |
=
| 9 |
| 2 |
| 7 |
| 18 |
| 1 |
| 6 |
=
| 7 |
| 4 |
| 1 |
| 6 |
=
| 23 |
| 12 |
分母:13+
| 1 |
| 3 |
| 1 |
| 3 |
=13+
| 1 |
| 3 |
| 25 |
| 2 |
=
| 5 |
| 6 |
| 23 |
| 12 |
| 5 |
| 6 |
=
| 23 |
| 12 |
| 6 |
| 5 |
=
| 23 |
| 10 |
故答案为:
| 23 |
| 10 |
点评:本题是考查繁分数的化简,可分别求出分子、分母再化简.
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