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분수: 분모가 다른 덧셈3분수6

1
6 3
+
3 9
=
21 9
6
+
3
=
7 3
2
3 9
+
6 6
=
24 18
3
+
6
=
4 3
3
6 6
+
2 5
=
42 30
6
+
2
=
7 5
4
2 5
+
7 9
=
53 45
5
9 6
+
1 4
=
21 12
9
+
1
=
7 4
6
5 4
+
9 3
=
51 12
5
+
9
=
17 4
7
3 9
+
4 3
=
15 9
3
+
4
=
5 3
8
4 3
+
8 5
=
44 15
9
8 5
+
6 2
=
46 10
8
+
6
=
23 5
10
6 2
+
2 6
=
20 6
6
+
2
=
10 3
11
2 6
+
8 5
=
58 30
2
+
8
=
29 15
12
8 5
+
2 3
=
34 15
13
2 3
+
3 4
=
17 12
14
4 4
+
1 8
=
9 8
15
5 8
+
1 4
=
7 8