鲁教版五年级数学上异分母分数加减法练习题

温柔似野鬼°
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2021年01月22日 08:03
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2021年1月22日发(作者:给力团购)
一、口算。结果请用最简分数表示。

1
1
1
1
2
1
4
1
7
3
+
=

-
=

-
=

-
=

-
=

2
3
2
4
5
5
7
7
8
8

1
2
5
2
1
1
3
1
2
1
+

=

-
=

+
=

-
=

+
=

3
5
8
4
10
5< br>6
3
3
3

5
5
9
1
4< br>2
1
1
1
1
-
=

-
=

-
=

+

=

-
=

3
8
12
12
10
10
5
5
6
2

3
3
1
1
4
3
7
5
5
+
=

-
=

+
=
1
-
=

+
=

8
8
2
5
7
7
8
6
6

1
-

5
3
1
9
3
5
5
3
5
=

+
=

-
=

-
=

+
=

5
2
8
8
12
10
10
7
7
1
7
1
3
3
1
91
9
3
+
=

+
=

+
=

-
=

-
=

6
12
4
4
7
2
10
2
10
5

5
8
1
7
19
13
19
3

+

=




+

=




-

=






+

=

9
9
8
8
24
24
36
36

3
4
11
1
1
1
12
3

+

=





-

=




-

=






-

=

7
7
8
8
4
9
13
13

8
4
1
1
1
3
1
1
7
3
3

+

+

=


1
-

-

=



+

+

=




-

+

=

9
11
9
6
6
4
4
4
8
8
8

+

-

=







+
=

-
=

=







-
=







+
=



二、计算(能简算的要简算)
。

5
3
1
1
5
3
1
1
(
1
)

-

+

(
2
)
1
-

+

(
3
)

+
2

-
1

8
10
4
24
48
4
5
2





3
2
1
5
4
2
2
3
3
2
(
4
)
5

-
2

+
3

(
5
)

-

+

-

(
6
)

-﹙

-

﹚

5
3
6
7
15
7
15
4
4
3





1
7
3
3< br>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
)

+

-

(
11
)
1
-

+

(
12
)

+﹙

-

﹚

10
20
15
12
4
28
14
7





5
2
7
1
1
5
5
1
1
(
13
)
2

-﹙

+

)

(
14
)
15

-
5

+
7

(
15
)
1

-﹙
3

-
1

﹚

6
3
12
4
2
6
6
3
2





1
2
7
5
3
1
2
(
16
)
1.875
+

(
17
)
+
+

(
18
)
+
-

3
8
15
8
6
4
3






11
1
1
7
3
73
1
(
19
)

-
(

+

)
(
20
)
11
-


-


(
21
)

-
(

-

)


12
6
8
10
10
12
4
2







4
2
1< br>2
3
5
1
5
4
1
3
3
(< br>20
)


-(

-

)

+
+

+
+

-
+

2
4
8
4
7
2
17
51
3
5
3
5





1
-




7
3
1 7
1
3
11
15
8
5
3
1
-
-
(
-
)
+
+

+
+

12
4
12
12
16
15
18
18
7< br>10
10

1
2
7
5
3
1< br>7
3
1
11
1
1
-
-

+
+

+
-


-
(

+

)
10
8
8
12
6
8
8
15
8
6
43





11
-

7
10

-

3
10







1
2
-
(
3
3
4
-
8

)












7
12

-
(
3
4

-

1
2
)



5
6
-
(
1
3
+
3
10

)



1
2

-(
3
4

-
3
8

)

2
3
+
5
6

-

1
6
















































45
8
11
-(30
2
8
5
+8
11
) 4







24-(7
5
9
+12
7
12
) 2






4
7
+6
2
9
+5
3
7
+
7
9
15
1
2
-3
1
1
5
4
4
5
-2
4
7.6+1
9
+
5
+
9

1
4
-1
3
16
+0.75




1
5
1
1
(
1
)
3x
-

=
1

(
2
)
7.5
-
x
=
2

(
3
)
4

+
x
=
5
6
6
4
3





3
5
1
3
4
4
(
4
)
3

-
x
=
1

(
5
)
3x
-

=
2
-

(
6
)
X
-
=

4
8





(
7
)
X+
2
2
7
=
3

























5
(
8
)
X
-
1
3
6
=
8





5
4
8
(
9
)
1
2
5

+
X=
3







-英语格言警句


-英语格言警句


-英语格言警句


-英语格言警句


-英语格言警句


-英语格言警句


-英语格言警句


-英语格言警句