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분수: 분모가 다른 덧셈3분수5

1
5 5
+
7 4
=
55 20
5
+
7
=
11 4
2
7 4
+
2 7
=
57 28
3
2 7
+
3 2
=
25 14
4
3 2
+
4 5
=
23 10
5
4 5
+
2 8
=
42 40
4
+
2
=
21 20
6
2 8
+
7 2
=
30 8
2
+
7
=
15 4
7
7 2
+
8 8
=
36 8
7
+
8
=
9 2
8
9 8
+
4 4
=
17 8
9
4 4
+
1 6
=
14 12
4
+
1
=
7 6
10
1 6
+
2 4
=
8 12
1
+
2
=
2 3
11
1 4
+
5 3
=
23 12
12
9 3
+
8 2
=
42 6
9
+
8
=
7
13
8 2
+
6 9
=
84 18
8
+
6
=
14 3
14
6 9
+
3 2
=
39 18
6
+
3
=
13 6
15
3 2
+
4 7
=
29 14