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분수: 분모가 다른 덧셈7분수5

1
7 5
+
3 7
=
64 35
2
3 7
+
9 4
=
75 28
3
9 4
+
2 6
=
31 12
4
2 6
+
3 7
=
32 42
2
+
3
=
16 21
5
3 7
+
6 3
=
51 21
3
+
6
=
17 7
6
6 3
+
3 2
=
21 6
6
+
3
=
7 2
7
3 2
+
1 9
=
29 18
8
1 9
+
9 6
=
29 18
9
9 6
+
2 8
=
42 24
9
+
2
=
7 4
10
8 2
+
4 4
=
20 4
8
+
4
=
5
11
4 6
+
1 4
=
11 12
12
1 4
+
2 6
=
7 12
13
6 2
+
8 3
=
34 6
6
+
8
=
17 3
14
8 3
+
4 6
=
20 6
8
+
4
=
10 3
15
6 4
+
5 9
=
74 36
6
+
5
=
37 18