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분수 2자리 (분모가 같은)

1
7 71
+
5 71
=
12 71
2
5 12
+
7 12
=
12 12
5
+
7
=
1 1
3
7 25
+
9 25
=
16 25
4
9 51
+
7 51
=
16 51
5
7 35
+
4 35
=
11 35
6
4 21
+
7 21
=
11 21
7
7 49
+
1 49
=
8 49
8
1 67
+
2 67
=
3 67
9
2 92
+
1 92
=
3 92
10
1 76
+
4 76
=
5 76
11
4 39
+
2 39
=
6 39
4
+
2
=
2 13
12
2 42
+
9 42
=
11 42
13
9 56
+
8 56
=
17 56
14
8 38
+
5 38
=
13 38
15
5 16
+
1 16
=
6 16
5
+
1
=
3 8