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분수: 분모가 다른 덧셈2분수3

1
3 7
+
2 6
=
32 42
3
+
2
=
16 21
2
6 2
+
5 3
=
28 6
6
+
5
=
14 3
3
5 3
+
3 6
=
13 6
4
3 6
+
4 3
=
11 6
5
3 4
+
9 2
=
21 4
6
9 2
+
6 7
=
75 14
7
6 7
+
5 5
=
65 35
6
+
5
=
13 7
8
5 3
+
1 6
=
11 6
9
1 6
+
5 5
=
35 30
1
+
5
=
7 6
10
6 5
+
3 4
=
39 20
11
1 4
+
3 3
=
15 12
1
+
3
=
5 4
12
3 3
+
4 2
=
18 6
3
+
4
=
3
13
2 4
+
5 5
=
30 20
2
+
5
=
3 2
14
5 5
+
4 9
=
65 45
5
+
4
=
13 9
15
4 9
+
8 7
=
100 63