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분수: 분모가 다른 덧셈3분수3

1
3 3
+
1 5
=
18 15
3
+
1
=
6 5
2
1 5
+
8 6
=
46 30
1
+
8
=
23 15
3
6 3
+
1 2
=
15 6
6
+
1
=
5 2
4
1 2
+
4 8
=
8 8
1
+
4
=
1
5
4 8
+
6 6
=
36 24
4
+
6
=
3 2
6
6 6
+
5 2
=
21 6
6
+
5
=
7 2
7
5 2
+
3 4
=
13 4
8
4 7
+
1 6
=
31 42
9
1 6
+
6 5
=
41 30
10
6 5
+
1 9
=
59 45
11
4 9
+
2 4
=
34 36
4
+
2
=
17 18
12
2 4
+
5 2
=
12 4
2
+
5
=
3
13
5 2
+
9 8
=
29 8
14
9 8
+
1 9
=
89 72
15
1 9
+
8 3
=
25 9