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분수: 분모가 다른 덧셈2분수2

1
2 2
+
3 4
=
7 4
2
3 4
+
6 3
=
33 12
3
+
6
=
11 4
3
6 3
+
3 4
=
33 12
6
+
3
=
11 4
4
3 4
+
1 5
=
19 20
5
1 5
+
9 2
=
47 10
6
9 2
+
8 6
=
35 6
7
1 5
+
2 9
=
19 45
8
2 9
+
1 5
=
19 45
9
1 5
+
5 4
=
29 20
10
3 5
+
9 3
=
54 15
3
+
9
=
18 5
11
9 3
+
3 6
=
21 6
9
+
3
=
7 2
12
3 2
+
1 3
=
11 6
13
1 3
+
3 2
=
11 6
14
3 2
+
2 7
=
25 14
15
2 7
+
6 9
=
60 63
2
+
6
=
20 21