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분수: 분모가 다른 덧셈4분수8

1
1 5
+
7 4
=
39 20
2
7 4
+
6 6
=
33 12
7
+
6
=
11 4
3
6 6
+
4 2
=
18 6
6
+
4
=
3
4
2 4
+
6 3
=
30 12
2
+
6
=
5 2
5
6 3
+
2 6
=
14 6
6
+
2
=
7 3
6
1 3
+
4 7
=
19 21
7
4 7
+
3 2
=
29 14
8
3 2
+
9 3
=
27 6
3
+
9
=
9 2
9
9 3
+
5 8
=
87 24
9
+
5
=
29 8
10
5 8
+
8 4
=
21 8
11
1 4
+
5 3
=
23 12
12
5 3
+
7 5
=
46 15
13
2 4
+
1 6
=
8 12
2
+
1
=
2 3
14
1 6
+
6 5
=
41 30
15
6 5
+
2 9
=
64 45