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분수 2자리 (분모가 같은)

1
5 21
+
4 21
=
9 21
5
+
4
=
3 7
2
4 38
+
9 38
=
13 38
3
9 73
+
2 73
=
11 73
4
2 62
+
6 62
=
8 62
2
+
6
=
4 31
5
3 16
+
2 16
=
5 16
6
2 33
+
8 33
=
10 33
7
8 93
+
4 93
=
12 93
8
+
4
=
4 31
8
4 61
+
8 61
=
12 61
9
8 71
+
3 71
=
11 71
10
3 32
+
5 32
=
8 32
3
+
5
=
1 4
11
5 60
+
1 60
=
6 60
5
+
1
=
1 10
12
1 54
+
3 54
=
4 54
1
+
3
=
2 27
13
3 41
+
8 41
=
11 41
14
8 39
+
1 39
=
9 39
8
+
1
=
3 13
15
1 10
+
6 10
=
7 10