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분수 2자리 (분모가 같은)

1
1 87
+
7 87
=
8 87
2
7 12
+
4 12
=
11 12
3
4 75
+
9 75
=
13 75
4
9 85
+
8 85
=
17 85
9
+
8
=
1 5
5
8 91
+
3 91
=
11 91
6
3 51
+
9 51
=
12 51
3
+
9
=
4 17
7
9 16
+
1 16
=
10 16
9
+
1
=
5 8
8
1 15
+
2 15
=
3 15
1
+
2
=
1 5
9
2 69
+
5 69
=
7 69
10
5 85
+
4 85
=
9 85
11
4 88
+
5 88
=
9 88
12
5 81
+
2 81
=
7 81
13
2 91
+
3 91
=
5 91
14
3 43
+
4 43
=
7 43
15
4 27
+
7 27
=
11 27