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분수: 분모가 다른 덧셈3분수4

1
3 4
+
4 5
=
31 20
2
5 4
+
8 3
=
47 12
3
8 3
+
5 7
=
71 21
4
7 6
+
1 7
=
55 42
5
2 7
+
8 6
=
68 42
2
+
8
=
34 21
6
8 6
+
1 3
=
10 6
8
+
1
=
5 3
7
1 8
+
8 3
=
67 24
8
3 6
+
1 8
=
15 24
3
+
1
=
5 8
9
8 4
+
1 3
=
28 12
8
+
1
=
7 3
10
1 3
+
7 7
=
28 21
1
+
7
=
4 3
11
7 7
+
1 5
=
42 35
7
+
1
=
6 5
12
1 5
+
3 9
=
24 45
1
+
3
=
8 15
13
9 7
+
1 2
=
25 14
14
1 2
+
5 5
=
15 10
1
+
5
=
3 2
15
1 9
+
6 6
=
20 18
1
+
6
=
10 9