Klapptest: Brüche addieren

1)
1
6
+
4
9
=
3
18
+
8
18
=
11
18
2)
5
11
+
3
4
=
20
44
+
33
44
=
53
44
3)
1
6
+
8
15
=
5
30
+
16
30
=
7
10
4)
8
3
+
2
3
=
8
3
+
2
3
=
10
3
5)
7
12
+
3
8
=
14
24
+
9
24
=
23
24
6)
1
2
+
4
5
=
5
10
+
8
10
=
13
10
7)
1
5
+
1
2
=
2
10
+
5
10
=
7
10
8)
4
7
+
7
3
=
12
21
+
49
21
=
61
21
9)
7
8
+
1
13
=
91
104
+
8
104
=
99
104
10)
1
6
+
2
13
=
13
78
+
12
78
=
25
78
11)
1
2
+
2
3
=
3
6
+
4
6
=
7
6
12)
1
5
+
9
8
=
8
40
+
45
40
=
53
40
13)
6
5
+
4
5
=
6
5
+
4
5
= 2
14)
9
4
+
5
6
=
27
12
+
10
12
=
37
12
15)
4
11
+
1
5
=
20
55
+
11
55
=
31
55
16)
4
7
+
4
15
=
60
105
+
28
105
=
88
105
17)
5
3
+
1
13
=
65
39
+
3
39
=
68
39
18)
1
8
+
9
4
=
1
8
+
18
8
=
19
8