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분수: 분모가 다른 덧셈6분수1

1
1 7
+
3 9
=
30 63
1
+
3
=
10 21
2
3 9
+
7 2
=
69 18
3
+
7
=
23 6
3
7 2
+
3 4
=
17 4
4
4 4
+
6 3
=
36 12
4
+
6
=
3
5
6 3
+
3 2
=
21 6
6
+
3
=
7 2
6
2 9
+
1 3
=
5 9
7
1 3
+
9 2
=
29 6
8
2 2
+
1 4
=
5 4
9
1 4
+
6 5
=
29 20
10
5 3
+
6 8
=
58 24
5
+
6
=
29 12
11
8 4
+
1 7
=
60 28
8
+
1
=
15 7
12
1 7
+
5 4
=
39 28
13
4 5
+
6 8
=
62 40
4
+
6
=
31 20
14
6 8
+
4 2
=
22 8
6
+
4
=
11 4
15
6 2
+
2 9
=
58 18
6
+
2
=
29 9