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분수: 분모가 다른 덧셈3분수7

1
3 7
+
2 3
=
23 21
2
2 3
+
9 6
=
13 6
3
9 6
+
4 5
=
69 30
9
+
4
=
23 10
4
4 5
+
1 3
=
17 15
5
1 3
+
8 7
=
31 21
6
8 7
+
6 4
=
74 28
8
+
6
=
37 14
7
9 4
+
3 9
=
93 36
9
+
3
=
31 12
8
9 3
+
1 4
=
39 12
9
+
1
=
13 4
9
1 4
+
7 6
=
17 12
10
7 6
+
4 9
=
29 18
11
9 9
+
1 6
=
21 18
9
+
1
=
7 6
12
1 6
+
5 4
=
17 12
13
5 4
+
3 2
=
11 4
14
3 2
+
5 5
=
25 10
3
+
5
=
5 2
15
3 9
+
1 4
=
21 36
3
+
1
=
7 12