Klapptest: Brüche addieren

1)
6
5
+
2
5
=
6
5
+
2
5
=
8
5
2)
4
5
+
2
3
=
12
15
+
10
15
=
22
15
3)
5
8
+
7
8
=
5
8
+
7
8
=
3
2
4)
9
10
+
2
3
=
27
30
+
20
30
=
47
30
5)
3
2
+
6
7
=
21
14
+
12
14
=
33
14
6)
5
6
+
7
12
=
10
12
+
7
12
=
17
12
7)
3
7
+
3
2
=
6
14
+
21
14
=
27
14
8)
4
7
+
5
12
=
48
84
+
35
84
=
83
84
9)
5
6
+
1
3
=
5
6
+
2
6
=
7
6
10)
3
4
+
1
5
=
15
20
+
4
20
=
19
20
11)
1
6
+
1
2
=
1
6
+
3
6
=
2
3
12)
5
11
+
4
15
=
75
165
+
44
165
=
119
165
13)
7
9
+
8
13
=
91
117
+
72
117
=
163
117
14)
9
10
+
1
4
=
18
20
+
5
20
=
23
20
15)
9
8
+
2
5
=
45
40
+
16
40
=
61
40
16)
8
3
+
8
11
=
88
33
+
24
33
=
112
33
17)
7
4
+
8
9
=
63
36
+
32
36
=
95
36
18)
9
4
+
2
3
=
27
12
+
8
12
=
35
12