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분수 1자리 (분모가 다른)

1
3 9
+
1 4
=
21 36
3
+
1
=
7 12
2
1 4
+
2 2
=
5 4
3
2 2
+
7 3
=
20 6
2
+
7
=
10 3
4
7 3
+
1 6
=
15 6
7
+
1
=
5 2
5
1 6
+
8 5
=
53 30
6
8 5
+
1 8
=
69 40
7
1 2
+
4 4
=
6 4
1
+
4
=
3 2
8
3 4
+
5 3
=
29 12
9
3 5
+
1 9
=
32 45
10
1 9
+
3 8
=
35 72
11
8 4
+
1 2
=
10 4
8
+
1
=
5 2
12
3 2
+
8 5
=
31 10
13
8 5
+
1 2
=
21 10
14
1 2
+
5 6
=
8 6
1
+
5
=
4 3
15
1 6
+
4 8
=
16 24
1
+
4
=
2 3