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분수: 분모가 다른 덧셈1분수3

1
1 3
+
8 4
=
28 12
1
+
8
=
7 3
2
8 4
+
7 2
=
22 4
8
+
7
=
11 2
3
2 7
+
9 2
=
67 14
4
2 2
+
1 6
=
7 6
5
1 6
+
2 2
=
7 6
6
2 2
+
1 3
=
8 6
2
+
1
=
4 3
7
1 3
+
6 5
=
23 15
8
5 6
+
9 5
=
79 30
9
3 5
+
9 8
=
69 40
10
9 8
+
6 2
=
33 8
11
6 2
+
5 4
=
17 4
12
4 5
+
8 3
=
52 15
13
8 3
+
6 9
=
30 9
8
+
6
=
10 3
14
5 9
+
8 3
=
29 9
15
1 3
+
4 2
=
14 6
1
+
4
=
7 3