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분수: 분모가 다른 덧셈3분수5

1
5 3
+
1 7
=
38 21
2
1 7
+
3 2
=
23 14
3
3 2
+
2 4
=
8 4
3
+
2
=
2
4
2 4
+
8 2
=
18 4
2
+
8
=
9 2
5
8 2
+
2 7
=
60 14
8
+
2
=
30 7
6
1 9
+
4 5
=
41 45
7
5 7
+
1 2
=
17 14
8
1 2
+
9 3
=
21 6
1
+
9
=
7 2
9
4 3
+
7 9
=
19 9
10
7 9
+
5 5
=
80 45
7
+
5
=
16 9
11
5 5
+
2 7
=
45 35
5
+
2
=
9 7
12
2 7
+
4 3
=
34 21
13
4 3
+
8 4
=
40 12
4
+
8
=
10 3
14
8 4
+
2 3
=
32 12
8
+
2
=
8 3
15
3 8
+
1 5
=
23 40