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분수 2자리 (분모가 같은)

1
1 71
+
6 71
=
7 71
2
6 28
+
3 28
=
9 28
3
3 63
+
4 63
=
7 63
3
+
4
=
1 9
4
4 50
+
5 50
=
9 50
5
5 43
+
2 43
=
7 43
6
2 23
+
4 23
=
6 23
7
4 25
+
1 25
=
5 25
4
+
1
=
1 5
8
1 37
+
7 37
=
8 37
9
7 19
+
8 19
=
15 19
10
8 66
+
2 66
=
10 66
8
+
2
=
5 33
11
2 48
+
5 48
=
7 48
12
5 31
+
2 31
=
7 31
13
2 40
+
1 40
=
3 40
14
1 11
+
5 11
=
6 11
15
5 81
+
6 81
=
11 81