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분수: 분모가 다른 덧셈3분수3

1
3 3
+
2 4
=
18 12
3
+
2
=
3 2
2
2 4
+
6 8
=
10 8
2
+
6
=
5 4
3
6 8
+
5 4
=
16 8
6
+
5
=
2
4
5 4
+
8 2
=
21 4
5
8 2
+
4 5
=
48 10
8
+
4
=
24 5
6
4 5
+
3 6
=
39 30
4
+
3
=
13 10
7
6 2
+
1 4
=
13 4
8
1 4
+
8 5
=
37 20
9
8 5
+
1 9
=
77 45
10
1 9
+
3 4
=
31 36
11
3 4
+
4 9
=
43 36
12
4 9
+
2 2
=
26 18
4
+
2
=
13 9
13
2 3
+
1 5
=
13 15
14
1 5
+
6 2
=
32 10
1
+
6
=
16 5
15
7 2
+
3 4
=
17 4