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분수 2자리 (분모가 같은)

1
2 18
+
7 18
=
9 18
2
+
7
=
1 2
2
7 40
+
1 40
=
8 40
7
+
1
=
1 5
3
1 13
+
9 13
=
10 13
4
9 45
+
6 45
=
15 45
9
+
6
=
1 3
5
6 43
+
2 43
=
8 43
6
2 22
+
9 22
=
11 22
2
+
9
=
1 2
7
9 20
+
3 20
=
12 20
9
+
3
=
3 5
8
3 38
+
4 38
=
7 38
9
4 13
+
1 13
=
5 13
10
1 15
+
2 15
=
3 15
1
+
2
=
1 5
11
2 34
+
3 34
=
5 34
12
3 48
+
4 48
=
7 48
13
4 55
+
5 55
=
9 55
14
8 45
+
3 45
=
11 45
15
3 14
+
1 14
=
4 14
3
+
1
=
2 7