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분수: 분모가 다른 덧셈7분수3

1
7 3
+
6 6
=
20 6
7
+
6
=
10 3
2
6 6
+
1 9
=
20 18
6
+
1
=
10 9
3
1 4
+
4 5
=
21 20
4
4 5
+
2 6
=
34 30
4
+
2
=
17 15
5
1 2
+
7 7
=
21 14
1
+
7
=
3 2
6
7 3
+
1 5
=
38 15
7
1 6
+
3 2
=
10 6
1
+
3
=
5 3
8
3 2
+
8 4
=
14 4
3
+
8
=
7 2
9
8 4
+
3 5
=
52 20
8
+
3
=
13 5
10
3 5
+
7 6
=
53 30
11
7 6
+
1 8
=
31 24
12
2 4
+
1 2
=
4 4
2
+
1
=
1
13
1 2
+
4 8
=
8 8
1
+
4
=
1
14
4 8
+
1 4
=
6 8
4
+
1
=
3 4
15
1 4
+
9 5
=
41 20