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분수: 분모가 다른 덧셈4분수4

1
4 6
+
1 5
=
26 30
4
+
1
=
13 15
2
1 5
+
5 2
=
27 10
3
2 7
+
1 2
=
11 14
4
1 2
+
5 7
=
17 14
5
5 7
+
6 4
=
62 28
5
+
6
=
31 14
6
6 4
+
7 9
=
82 36
6
+
7
=
41 18
7
7 9
+
4 6
=
26 18
7
+
4
=
13 9
8
6 9
+
1 6
=
15 18
6
+
1
=
5 6
9
3 8
+
1 5
=
23 40
10
1 5
+
9 4
=
49 20
11
9 4
+
2 7
=
71 28
12
7 2
+
5 3
=
31 6
13
5 3
+
1 5
=
28 15
14
1 5
+
2 3
=
13 15
15
2 3
+
3 8
=
25 24