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분수: 분모가 다른 덧셈3분수2

1
3 2
+
6 4
=
12 4
3
+
6
=
3
2
6 4
+
5 8
=
17 8
3
5 8
+
4 3
=
47 24
4
2 3
+
6 5
=
28 15
5
2 5
+
6 3
=
36 15
2
+
6
=
12 5
6
1 6
+
2 3
=
5 6
7
3 2
+
2 7
=
25 14
8
2 7
+
5 5
=
45 35
2
+
5
=
9 7
9
5 5
+
2 4
=
30 20
5
+
2
=
3 2
10
2 4
+
3 2
=
8 4
2
+
3
=
2
11
3 2
+
1 9
=
29 18
12
1 9
+
5 3
=
16 9
13
3 3
+
5 6
=
11 6
14
5 6
+
3 7
=
53 42
15
3 7
+
7 2
=
55 14