Klapptest: Brüche addieren

1)
7
11
+
6
7
=
49
77
+
66
77
=
115
77
2)
3
2
+
3
10
=
15
10
+
3
10
=
9
5
3)
4
3
+
1
3
=
4
3
+
1
3
=
5
3
4)
1
2
+
2
5
=
5
10
+
4
10
=
9
10
5)
9
4
+
3
5
=
45
20
+
12
20
=
57
20
6)
1
2
+
1
5
=
5
10
+
2
10
=
7
10
7)
4
5
+
2
3
=
12
15
+
10
15
=
22
15
8)
7
5
+
3
2
=
14
10
+
15
10
=
29
10
9)
9
10
+
9
10
=
9
10
+
9
10
=
9
5
10)
7
6
+
1
2
=
7
6
+
3
6
=
5
3
11)
1
2
+
1
6
=
3
6
+
1
6
=
2
3
12)
4
7
+
1
8
=
32
56
+
7
56
=
39
56
13)
3
4
+
7
13
=
39
52
+
28
52
=
67
52
14)
6
7
+
6
7
=
6
7
+
6
7
=
12
7
15)
1
11
+
2
5
=
5
55
+
22
55
=
27
55
16)
5
7
+
1
3
=
15
21
+
7
21
=
22
21
17)
1
2
+
7
8
=
4
8
+
7
8
=
11
8
18)
1
6
+
1
2
=
1
6
+
3
6
=
2
3