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분수: 분모가 다른 덧셈2분수1

1
6 3
+
1 4
=
27 12
6
+
1
=
9 4
2
1 4
+
6 3
=
27 12
1
+
6
=
9 4
3
1 3
+
5 6
=
7 6
4
5 6
+
9 7
=
89 42
5
7 6
+
1 7
=
55 42
6
1 7
+
6 5
=
47 35
7
6 5
+
2 4
=
34 20
6
+
2
=
17 10
8
2 4
+
1 8
=
5 8
9
1 8
+
9 3
=
75 24
1
+
9
=
25 8
10
9 3
+
5 4
=
51 12
9
+
5
=
17 4
11
3 4
+
4 2
=
11 4
12
4 2
+
8 9
=
52 18
4
+
8
=
26 9
13
8 9
+
2 8
=
82 72
8
+
2
=
41 36
14
2 8
+
9 3
=
78 24
2
+
9
=
13 4
15
9 3
+
3 5
=
54 15
9
+
3
=
18 5