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분수: 분모가 다른 덧셈4분수4

1
4 5
+
6 9
=
66 45
4
+
6
=
22 15
2
6 9
+
1 2
=
21 18
6
+
1
=
7 6
3
1 2
+
7 9
=
23 18
4
4 9
+
7 6
=
29 18
5
7 6
+
3 7
=
67 42
6
3 7
+
4 6
=
46 42
3
+
4
=
23 21
7
6 6
+
1 3
=
8 6
6
+
1
=
4 3
8
1 3
+
4 9
=
7 9
9
4 9
+
1 5
=
29 45
10
1 4
+
2 5
=
13 20
11
5 6
+
1 2
=
8 6
5
+
1
=
4 3
12
7 2
+
8 3
=
37 6
13
8 3
+
3 5
=
49 15
14
9 3
+
7 9
=
34 9
15
7 9
+
3 7
=
76 63