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분수: 분모가 다른 덧셈4분수4

1
4 4
+
1 6
=
14 12
4
+
1
=
7 6
2
1 6
+
2 9
=
7 18
3
2 9
+
9 5
=
91 45
4
2 5
+
5 3
=
31 15
5
2 3
+
5 9
=
11 9
6
9 5
+
1 8
=
77 40
7
1 8
+
2 5
=
21 40
8
5 6
+
1 3
=
7 6
9
1 3
+
7 4
=
25 12
10
7 4
+
8 3
=
53 12
11
1 5
+
5 6
=
31 30
12
5 6
+
4 8
=
32 24
5
+
4
=
4 3
13
4 8
+
2 2
=
12 8
4
+
2
=
3 2
14
5 2
+
1 9
=
47 18
15
1 9
+
8 3
=
25 9