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분수 1자리 (분모가 같은)

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