题目内容
直接写得数
|
1÷
|
|
|
| ||||||||||||||||||
|
|
2-
|
|
|
分析:①⑦⑧题,通分计算;②④⑨⑩题,把除法改为乘法,再计算,能约分的要约分;③⑤⑥题,分子相乘的积做分子,分母相乘的积做分母,能约分的要约分.
解答:解:
-
=
; 1÷
=6;
×
=1;
÷
=
;
×
=
;
×14=4;
+
=
; 2-
=1
;
÷
=
;
÷
=
;
故答案为:
,6,1,
,
,4,
,1
,
,
.
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 6 |
| 2 |
| 3 |
| 3 |
| 2 |
| 4 |
| 9 |
| 1 |
| 8 |
| 32 |
| 9 |
| 3 |
| 5 |
| 1 |
| 6 |
| 1 |
| 10 |
| 2 |
| 7 |
| 1 |
| 3 |
| 1 |
| 4 |
| 7 |
| 12 |
| 2 |
| 7 |
| 5 |
| 7 |
| 4 |
| 9 |
| 2 |
| 3 |
| 2 |
| 3 |
| 1 |
| 10 |
| 1 |
| 5 |
| 1 |
| 2 |
故答案为:
| 1 |
| 6 |
| 32 |
| 9 |
| 1 |
| 10 |
| 7 |
| 12 |
| 5 |
| 7 |
| 2 |
| 3 |
| 1 |
| 2 |
点评:此题考查了分数的四则运算,注意通分、约分等知识.
练习册系列答案
相关题目