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분수 1자리 (분모가 같은)

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