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분수 2자리 (분모가 같은)

1
4 71
+
6 71
=
10 71
2
6 34
+
5 34
=
11 34
3
5 81
+
7 81
=
12 81
5
+
7
=
4 27
4
7 84
+
3 84
=
10 84
7
+
3
=
5 42
5
3 41
+
9 41
=
12 41
6
4 20
+
9 20
=
13 20
7
9 87
+
2 87
=
11 87
8
2 89
+
9 89
=
11 89
9
9 81
+
1 81
=
10 81
10
1 42
+
3 42
=
4 42
1
+
3
=
2 21
11
3 40
+
1 40
=
4 40
3
+
1
=
1 10
12
1 32
+
3 32
=
4 32
1
+
3
=
1 8
13
8 38
+
5 38
=
13 38
14
5 21
+
6 21
=
11 21
15
6 26
+
7 26
=
13 26
6
+
7
=
1 2
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