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분수: 분모가 다른 덧셈2분수2

1
2 2
+
6 7
=
26 14
2
+
6
=
13 7
2
6 7
+
5 9
=
89 63
3
5 9
+
1 4
=
29 36
4
1 4
+
2 7
=
15 28
5
7 5
+
1 4
=
33 20
6
1 4
+
7 6
=
17 12
7
6 8
+
4 7
=
74 56
6
+
4
=
37 28
8
4 7
+
8 3
=
68 21
9
3 6
+
1 8
=
15 24
3
+
1
=
5 8
10
1 8
+
5 6
=
23 24
11
5 6
+
2 4
=
16 12
5
+
2
=
4 3
12
2 4
+
1 9
=
22 36
2
+
1
=
11 18
13
1 9
+
8 4
=
76 36
1
+
8
=
19 9
14
7 4
+
1 3
=
25 12
15
1 3
+
3 5
=
14 15