Klapptest: Brüche addieren

1)
9
4
+
2
5
=
45
20
+
8
20
=
53
20
2)
2
3
+
3
4
=
8
12
+
9
12
=
17
12
3)
1
6
+
2
9
=
3
18
+
4
18
=
7
18
4)
3
4
+
2
11
=
33
44
+
8
44
=
41
44
5)
7
5
+
1
4
=
28
20
+
5
20
=
33
20
6)
5
4
+
3
2
=
5
4
+
6
4
=
11
4
7)
4
3
+
2
3
=
4
3
+
2
3
= 2
8)
4
5
+
5
8
=
32
40
+
25
40
=
57
40
9)
7
3
+
3
14
=
98
42
+
9
42
=
107
42
10)
8
7
+
2
13
=
104
91
+
14
91
=
118
91
11)
3
4
+
5
8
=
6
8
+
5
8
=
11
8
12)
4
7
+
2
3
=
12
21
+
14
21
=
26
21
13)
4
9
+
4
7
=
28
63
+
36
63
=
64
63
14)
4
5
+
8
15
=
12
15
+
8
15
=
4
3
15)
8
5
+
1
2
=
16
10
+
5
10
=
21
10
16)
2
7
+
1
14
=
4
14
+
1
14
=
5
14
17)
3
4
+
8
15
=
45
60
+
32
60
=
77
60
18)
7
5
+
4
7
=
49
35
+
20
35
=
69
35