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분수: 분모가 다른 덧셈3분수5

1
5 5
+
1 3
=
20 15
5
+
1
=
4 3
2
1 3
+
5 2
=
17 6
3
5 2
+
8 8
=
28 8
5
+
8
=
7 2
4
8 4
+
1 8
=
17 8
5
1 8
+
3 4
=
7 8
6
6 4
+
1 2
=
8 4
6
+
1
=
2
7
2 9
+
1 5
=
19 45
8
1 5
+
8 6
=
46 30
1
+
8
=
23 15
9
8 6
+
4 5
=
64 30
8
+
4
=
32 15
10
4 5
+
7 3
=
47 15
11
1 7
+
5 9
=
44 63
12
5 9
+
1 6
=
13 18
13
2 7
+
1 2
=
11 14
14
1 4
+
7 2
=
15 4
15
7 2
+
5 9
=
73 18