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분수: 분모가 다른 덧셈8분수4

1
8 4
+
6 6
=
36 12
8
+
6
=
3
2
6 6
+
4 2
=
18 6
6
+
4
=
3
3
2 7
+
1 2
=
11 14
4
4 5
+
1 8
=
37 40
5
1 8
+
3 3
=
27 24
1
+
3
=
9 8
6
1 4
+
2 3
=
11 12
7
2 3
+
3 7
=
23 21
8
7 3
+
4 7
=
61 21
9
4 7
+
1 6
=
31 42
10
1 6
+
5 4
=
17 12
11
5 4
+
2 2
=
9 4
12
2 2
+
8 3
=
22 6
2
+
8
=
11 3
13
3 3
+
5 2
=
21 6
3
+
5
=
7 2
14
4 5
+
9 4
=
61 20
15
9 4
+
1 5
=
49 20