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분수: 분모가 다른 덧셈4분수4

1
7 4
+
8 3
=
53 12
2
1 3
+
2 2
=
8 6
1
+
2
=
4 3
3
2 2
+
8 6
=
14 6
2
+
8
=
7 3
4
8 6
+
5 3
=
18 6
8
+
5
=
3
5
5 3
+
9 5
=
52 15
6
5 9
+
8 2
=
82 18
5
+
8
=
41 9
7
8 2
+
6 8
=
38 8
8
+
6
=
19 4
8
6 8
+
2 6
=
26 24
6
+
2
=
13 12
9
2 6
+
1 2
=
5 6
10
1 2
+
2 3
=
7 6
11
1 3
+
3 4
=
13 12
12
3 4
+
5 5
=
35 20
3
+
5
=
7 4
13
3 5
+
5 8
=
49 40
14
5 8
+
3 3
=
39 24
5
+
3
=
13 8
15
2 3
+
3 7
=
23 21