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분수 1자리 (분모가 같은)

1
1 2
+
3 2
=
4 2
1
+
3
=
2 1
2
3 8
+
2 8
=
5 8
3
2 3
+
6 3
=
8 3
4
6 2
+
7 2
=
13 2
5
7 7
+
9 7
=
16 7
6
9 3
+
8 3
=
17 3
7
8 7
+
2 7
=
10 7
8
2 3
+
1 3
=
3 3
2
+
1
=
1 1
9
1 2
+
2 2
=
3 2
10
2 8
+
9 8
=
11 8
11
2 9
+
8 9
=
10 9
12
1 7
+
3 7
=
4 7
13
3 3
+
5 3
=
8 3
14
5 7
+
3 7
=
8 7
15
3 2
+
2 2
=
5 2