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분수: 분모가 다른 덧셈1분수2

1
1 2
+
6 3
=
15 6
1
+
6
=
5 2
2
6 3
+
4 7
=
54 21
6
+
4
=
18 7
3
7 6
+
1 9
=
23 18
4
1 9
+
5 8
=
53 72
5
5 8
+
7 2
=
33 8
6
2 7
+
4 3
=
34 21
7
4 3
+
9 6
=
17 6
8
9 6
+
2 7
=
75 42
9
+
2
=
25 14
9
2 7
+
1 2
=
11 14
10
1 2
+
2 4
=
4 4
1
+
2
=
1
11
2 4
+
4 7
=
30 28
2
+
4
=
15 14
12
4 7
+
6 3
=
54 21
4
+
6
=
18 7
13
3 6
+
5 9
=
19 18
14
5 9
+
4 4
=
56 36
5
+
4
=
14 9
15
4 4
+
2 7
=
36 28
4
+
2
=
9 7