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분수: 분모가 다른 덧셈3분수1

1
1 2
+
4 5
=
13 10
2
3 5
+
5 8
=
49 40
3
5 8
+
4 3
=
47 24
4
9 3
+
7 4
=
57 12
9
+
7
=
19 4
5
7 4
+
1 9
=
67 36
6
1 9
+
4 2
=
38 18
1
+
4
=
19 9
7
2 4
+
7 7
=
42 28
2
+
7
=
3 2
8
7 7
+
2 8
=
70 56
7
+
2
=
5 4
9
2 8
+
1 6
=
10 24
2
+
1
=
5 12
10
2 6
+
3 9
=
12 18
2
+
3
=
2 3
11
1 5
+
6 8
=
38 40
1
+
6
=
19 20
12
8 2
+
1 6
=
25 6
13
1 6
+
5 7
=
37 42
14
7 8
+
1 7
=
57 56
15
1 7
+
2 9
=
23 63