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분수: 분모가 다른 덧셈3분수3

1
1 3
+
8 5
=
29 15
2
8 5
+
3 4
=
47 20
3
3 4
+
2 3
=
17 12
4
2 3
+
1 4
=
11 12
5
1 4
+
3 9
=
21 36
1
+
3
=
7 12
6
3 9
+
4 3
=
15 9
3
+
4
=
5 3
7
1 3
+
2 8
=
14 24
1
+
2
=
7 12
8
2 8
+
1 9
=
26 72
2
+
1
=
13 36
9
1 9
+
3 8
=
35 72
10
3 8
+
7 2
=
31 8
11
7 2
+
2 6
=
23 6
12
4 6
+
2 3
=
8 6
4
+
2
=
4 3
13
2 3
+
6 5
=
28 15
14
8 5
+
7 9
=
107 45
15
7 9
+
2 7
=
67 63