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분수: 분모가 다른 덧셈3분수2

1
7 2
+
2 5
=
39 10
2
2 5
+
1 4
=
13 20
3
7 4
+
6 7
=
73 28
4
6 7
+
1 8
=
55 56
5
1 8
+
9 2
=
37 8
6
3 2
+
9 6
=
18 6
3
+
9
=
3
7
6 5
+
1 2
=
17 10
8
8 2
+
4 6
=
28 6
8
+
4
=
14 3
9
4 6
+
5 2
=
19 6
10
5 2
+
6 5
=
37 10
11
6 5
+
3 8
=
63 40
12
3 6
+
1 5
=
21 30
3
+
1
=
7 10
13
5 5
+
1 9
=
50 45
5
+
1
=
10 9
14
1 9
+
5 2
=
47 18
15
2 8
+
1 3
=
14 24
2
+
1
=
7 12