题目内容
直接写得数.
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1-
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分析:(1)(8)数以同分母分数的加减法,只把分子相加减,分母不变;
(2)(3)(4)(5)(6)(7)(10)题,属于异分母分数的加减法计算,应先通分,再计算;
(9)属于整数与分数的减法计算,先把整数化为分数,再计算.
(2)(3)(4)(5)(6)(7)(10)题,属于异分母分数的加减法计算,应先通分,再计算;
(9)属于整数与分数的减法计算,先把整数化为分数,再计算.
解答:解:
-
=
;
+
=
;
+
=
;
+
=
;
-
=
;
-
=0;
-
=
;
+
=1;
1-
=
;
-
=
.
| 5 |
| 6 |
| 2 |
| 6 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 4 |
| 7 |
| 12 |
| 4 |
| 5 |
| 7 |
| 10 |
| 3 |
| 2 |
| 3 |
| 16 |
| 3 |
| 8 |
| 9 |
| 16 |
| 8 |
| 9 |
| 1 |
| 7 |
| 47 |
| 63 |
| 3 |
| 3 |
| 4 |
| 4 |
| 1 |
| 7 |
| 1 |
| 8 |
| 1 |
| 56 |
| 2 |
| 5 |
| 3 |
| 5 |
1-
| 2 |
| 3 |
| 1 |
| 3 |
| 5 |
| 8 |
| 7 |
| 12 |
| 1 |
| 24 |
点评:此题考查了分数的加减法计算,掌握运算方法,是解题的关键.
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