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분수: 분모가 다른 덧셈3분수9

1
3 9
+
4 5
=
51 45
3
+
4
=
17 15
2
5 3
+
1 7
=
38 21
3
1 7
+
4 8
=
36 56
1
+
4
=
9 14
4
4 8
+
1 5
=
28 40
4
+
1
=
7 10
5
1 2
+
2 5
=
9 10
6
1 3
+
7 2
=
23 6
7
7 2
+
1 8
=
29 8
8
1 8
+
3 6
=
15 24
1
+
3
=
5 8
9
3 6
+
1 4
=
9 12
3
+
1
=
3 4
10
1 5
+
4 4
=
24 20
1
+
4
=
6 5
11
4 4
+
3 8
=
11 8
12
3 8
+
2 7
=
37 56
13
7 6
+
1 7
=
55 42
14
4 7
+
2 4
=
30 28
4
+
2
=
15 14
15
4 5
+
1 7
=
33 35