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분수: 분모가 다른 덧셈2분수5

1
2 5
+
1 4
=
13 20
2
1 4
+
5 3
=
23 12
3
5 3
+
4 5
=
37 15
4
4 5
+
8 2
=
48 10
4
+
8
=
24 5
5
2 8
+
1 2
=
6 8
2
+
1
=
3 4
6
4 2
+
2 3
=
16 6
4
+
2
=
8 3
7
2 3
+
7 7
=
35 21
2
+
7
=
5 3
8
9 7
+
6 2
=
60 14
9
+
6
=
30 7
9
2 9
+
1 8
=
25 72
10
1 8
+
8 5
=
69 40
11
8 5
+
2 8
=
74 40
8
+
2
=
37 20
12
2 8
+
3 5
=
34 40
2
+
3
=
17 20
13
3 5
+
8 4
=
52 20
3
+
8
=
13 5
14
8 4
+
4 7
=
72 28
8
+
4
=
18 7
15
4 7
+
7 3
=
61 21