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분수 2자리 (분모가 같은)

1
2 74
+
4 74
=
6 74
2
+
4
=
3 37
2
4 27
+
1 27
=
5 27
3
1 85
+
3 85
=
4 85
4
3 57
+
2 57
=
5 57
5
9 42
+
3 42
=
12 42
9
+
3
=
2 7
6
3 11
+
6 11
=
9 11
7
6 16
+
1 16
=
7 16
8
1 62
+
9 62
=
10 62
1
+
9
=
5 31
9
9 23
+
1 23
=
10 23
10
1 33
+
8 33
=
9 33
1
+
8
=
3 11
11
8 20
+
2 20
=
10 20
8
+
2
=
1 2
12
2 10
+
1 10
=
3 10
13
1 24
+
4 24
=
5 24
14
4 46
+
7 46
=
11 46
15
6 17
+
2 17
=
8 17