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분수 2자리 (분모가 같은)

1
3 81
+
5 81
=
8 81
2
5 71
+
3 71
=
8 71
3
3 71
+
1 71
=
4 71
4
1 68
+
4 68
=
5 68
5
4 14
+
3 14
=
7 14
4
+
3
=
1 2
6
3 70
+
1 70
=
4 70
3
+
1
=
2 35
7
1 42
+
4 42
=
5 42
8
4 30
+
3 30
=
7 30
9
3 77
+
1 77
=
4 77
10
1 75
+
5 75
=
6 75
1
+
5
=
2 25
11
5 45
+
1 45
=
6 45
5
+
1
=
2 15
12
1 66
+
3 66
=
4 66
1
+
3
=
2 33
13
3 37
+
6 37
=
9 37
14
6 26
+
9 26
=
15 26
15
2 39
+
1 39
=
3 39
2
+
1
=
1 13