(经典)异分母分数加减法练习题word版本
巡山小妖精
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2021年01月22日 07:37
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(
经
典
)
异
分
母
分
数
加
减
法
练
习
题
[
选取日期
]
一、口算。结果请用最简分数表示。
1
2
+
1
3
=
1
2
-
1
4
=
2
5
-
1
5
=
4
7
-
1
7
=
7
8
-
3
8
=
1
10
+
2
5
=
5
6
-
2
3
=
1
1
3
1
2
1
3
+
5
=
8
-
4
=
3
+
3
=
5
5
9
14
2
1
1
12
-
12
=
10
-
10
=
5
-
5
=
6
+
3
=
1
1
2
-
8
=
3
8
+
3
8
=
1
2
-
1
5
=
4
7
+
3
7
=
1
-
7
8
=
5
6
+
5
6
=
1
8
+
7
8
=
19
24
-
13
24
=
19
3
36
+
36
=
3
7
+
4
7
=
11
8
-
1
1
1
12
3
8
=
4
-
9
=
13
-
13
=
8
4
9
+
11
+
1
9
=
1
-
1
6
-
1
6
=
1
-
5
12
=
3
5
+
1
2
=
9
10
-
3
10
=
5
5
3
5
[
键入公
7
-
7
=
8
+
8
=
1
司名称
6
+
7
12
=
1
3
3
1
9
1
9
3
4
+
五年级计算题
4
=
7
+
2
=
10
-
2
=
10
-
5
=
5
9
+
]
8
9
=
3
4
+
1
4
+
1
4
=
7
3
3
8
-
8
+
8
=
+
=
-
=
+
=
-
=
+
=
-
=
二、
计算(能简算的要简算)。
(
1
)
5
8
-
3
10
+
1
4
(
2
)
1
-
1
5
3
1
1
24
+
48
(
3
)
4
+
2
5
-
1
2
[
键入文档副标题
] | lenovo
3
2
1
5
4
2
2
3
3
2
(
4
)﹚
5
5
-
2
3
+
3
6
(
5
)
7
-
15
+
7
-
15
(
6
)
4
-﹙
4
-
3
】
1
7
3
3
4
1
1
(
7
)
2
-
-
(
8
)
4.75
+
5
-
3
(
9
)
-
+
8
8
8
4
5
4
3
9
3
3
7
3
27
13
5
(
10< br>)
+
-
(
11
)
1
-
+
(
12
)
+﹙
-
﹚
10
20
15
12
4
28
1 4
7
5
2
7
1
1
5
5
1
1
(
13
)
2
6
-﹙
3
+
12
)(
14
)
15
4
-
5
2
+
7
6
(
15
)
1
6
-﹙
3
3
-
1
2
﹚
(
16
)
1.875
+
2
3
(
17
)
1
2
7
5
3
1
8
+
15
+
8
(
18
)
6+
4
-
3
e
(
19
)
11
1 2
-
(
1
6
+
1
8
)
(
2
0
)
11
-
7
10
-
3
10
(
21
)
7
3
1
12
-
(
4
-
2
)
(
3
4
-
3
8
)
3
5
1
4
2
1
5
4
2
4
+
7
+
2
5
+
3
+
5
17
-
51
+
3
1
-
17
18
-
1
7
3
3
5
3
1
18
10
-
(
7
-
10
)
12
+
4
+< br>12
7
10
-
3
8
-
1
1
8
8
+
2
7
5
3
1
11
1
1
15
+
8
6
+
4
-
312
-
(
6
+
8
)
11
-
7
3
7
3
1
1
3
10
-
10
12
-
(
4
-
2
)
2
-(
4
-
3
8
)
1
3
3
5
1
3
2
-
(
4
-
8
)
6
-
(
3
+
10
)
1-
5
6
-
1
6
1
2
-
8
2
8
4
2
3
7
1
1
1
45
-(30
+8
)4
+6
+5
+
15
-3
-2
11
5
11
79
7
9
2
5
4
5
4
4
57
1
3
7.6+1
+
+
24-(7
+12
) 2
-1
+0.75
9
5
9
9
12
4
16
1
5
1
1
(
1
)
3x
-
=
1
(
2
)
7.5
-
x
=
2
(
3
)
4
+
x
=
5
6
6
4
3
1
3
4
4
3
5
(
4
)
3
-
x
=
1
(
5
)
3x
-
=
2
-
(
6
)
X
-
=
4
8
5
5
4
8
1
3
2
2
(
7
)
X+
=
(
8
)
X
-
=
7
3
6
8
有
|
代表已做
|
1
2
4
1
1
3
1
2
+x=
-x=
x-
=
+
X=
7
3
5
4
6< br>8
5
3
1
3
2
2
3
5
X< br>-
=
X+
=
X
-
=
6
8
7
3
4
8