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분수 2자리 (분모가 같은)

1
1 28
+
4 28
=
5 28
2
4 72
+
3 72
=
7 72
3
3 57
+
2 57
=
5 57
4
2 99
+
3 99
=
5 99
5
3 73
+
5 73
=
8 73
6
5 29
+
2 29
=
7 29
7
2 27
+
4 27
=
6 27
2
+
4
=
2 9
8
4 27
+
8 27
=
12 27
4
+
8
=
4 9
9
8 59
+
4 59
=
12 59
10
4 63
+
2 63
=
6 63
4
+
2
=
2 21
11
2 41
+
7 41
=
9 41
12
4 87
+
2 87
=
6 87
4
+
2
=
2 29
13
2 42
+
4 42
=
6 42
2
+
4
=
1 7
14
4 98
+
5 98
=
9 98
15
6 75
+
7 75
=
13 75