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분수: 분모가 다른 덧셈4분수4

1
4 4
+
9 3
=
48 12
4
+
9
=
4
2
9 3
+
5 7
=
78 21
9
+
5
=
26 7
3
5 7
+
4 4
=
48 28
5
+
4
=
12 7
4
6 4
+
4 5
=
46 20
6
+
4
=
23 10
5
4 5
+
5 6
=
49 30
6
5 6
+
3 2
=
14 6
5
+
3
=
7 3
7
3 2
+
4 4
=
10 4
3
+
4
=
5 2
8
4 4
+
2 2
=
8 4
4
+
2
=
2
9
2 4
+
1 3
=
10 12
2
+
1
=
5 6
10
1 3
+
6 2
=
20 6
1
+
6
=
10 3
11
4 2
+
7 6
=
19 6
12
7 6
+
3 7
=
67 42
13
7 3
+
4 8
=
68 24
7
+
4
=
17 6
14
8 4
+
3 5
=
52 20
8
+
3
=
13 5
15
3 5
+
1 6
=
23 30