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분수: 분모가 다른 덧셈3분수6

1
3 6
+
4 5
=
39 30
3
+
4
=
13 10
2
4 5
+
3 9
=
51 45
4
+
3
=
17 15
3
3 9
+
2 5
=
33 45
3
+
2
=
11 15
4
5 2
+
7 4
=
17 4
5
7 4
+
3 7
=
61 28
6
3 7
+
1 3
=
16 21
7
1 3
+
9 2
=
29 6
8
9 2
+
7 3
=
41 6
9
7 3
+
1 4
=
31 12
10
1 4
+
7 5
=
33 20
11
7 5
+
3 3
=
36 15
7
+
3
=
12 5
12
3 3
+
2 5
=
21 15
3
+
2
=
7 5
13
2 5
+
1 9
=
23 45
14
1 9
+
3 2
=
29 18
15
5 2
+
7 3
=
29 6