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분수: 분모가 다른 덧셈2분수4

1
4 9
+
1 2
=
17 18
2
1 2
+
6 3
=
15 6
1
+
6
=
5 2
3
1 3
+
9 4
=
31 12
4
4 9
+
3 5
=
47 45
5
3 5
+
4 9
=
47 45
6
4 9
+
9 4
=
97 36
7
9 4
+
2 7
=
71 28
8
2 7
+
3 3
=
27 21
2
+
3
=
9 7
9
3 3
+
7 7
=
42 21
3
+
7
=
2
10
7 7
+
4 9
=
91 63
7
+
4
=
13 9
11
1 6
+
4 5
=
29 30
12
4 5
+
2 8
=
42 40
4
+
2
=
21 20
13
1 8
+
9 6
=
39 24
1
+
9
=
13 8
14
2 6
+
3 5
=
28 30
2
+
3
=
14 15
15
5 3
+
1 8
=
43 24