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분수: 분모가 다른 덧셈2분수2

1
2 2
+
6 6
=
12 6
2
+
6
=
2
2
6 6
+
5 4
=
27 12
6
+
5
=
9 4
3
5 4
+
8 2
=
21 4
4
1 4
+
4 7
=
23 28
5
4 7
+
5 6
=
59 42
6
1 4
+
9 3
=
39 12
1
+
9
=
13 4
7
9 3
+
1 9
=
28 9
8
1 9
+
3 5
=
32 45
9
5 2
+
1 3
=
17 6
10
1 2
+
9 8
=
13 8
11
9 8
+
7 6
=
55 24
12
6 6
+
1 9
=
20 18
6
+
1
=
10 9
13
1 9
+
5 3
=
16 9
14
5 3
+
9 4
=
47 12
15
9 4
+
4 2
=
17 4