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분수: 분모가 다른 덧셈4분수2

1
4 2
+
3 3
=
18 6
4
+
3
=
3
2
3 3
+
1 9
=
10 9
3
5 7
+
1 9
=
52 63
4
1 9
+
6 7
=
61 63
5
6 7
+
3 8
=
69 56
6
3 8
+
4 5
=
47 40
7
4 5
+
2 4
=
26 20
4
+
2
=
13 10
8
2 4
+
8 5
=
42 20
2
+
8
=
21 10
9
8 5
+
4 3
=
44 15
10
4 5
+
1 2
=
13 10
11
1 2
+
4 7
=
15 14
12
4 7
+
8 5
=
76 35
13
5 8
+
2 6
=
23 24
14
6 2
+
8 3
=
34 6
6
+
8
=
17 3
15
2 3
+
4 6
=
8 6
2
+
4
=
4 3