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분수: 분모가 다른 덧셈3분수3

1
3 3
+
4 9
=
13 9
2
4 9
+
1 7
=
37 63
3
7 4
+
1 9
=
67 36
4
1 9
+
5 4
=
49 36
5
5 4
+
8 6
=
31 12
6
6 2
+
1 5
=
32 10
6
+
1
=
16 5
7
1 5
+
9 9
=
54 45
1
+
9
=
6 5
8
9 9
+
7 3
=
30 9
9
+
7
=
10 3
9
3 7
+
2 3
=
23 21
10
2 3
+
3 8
=
25 24
11
1 9
+
9 5
=
86 45
12
9 5
+
8 3
=
67 15
13
8 3
+
2 4
=
38 12
8
+
2
=
19 6
14
2 4
+
9 2
=
20 4
2
+
9
=
5
15
9 2
+
5 4
=
23 4