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분수: 분모가 다른 덧셈2분수9

1
2 9
+
7 3
=
23 9
2
7 3
+
3 7
=
58 21
3
3 7
+
1 5
=
22 35
4
3 4
+
1 7
=
25 28
5
6 7
+
1 6
=
43 42
6
6 3
+
1 8
=
51 24
6
+
1
=
17 8
7
1 2
+
9 3
=
21 6
1
+
9
=
7 2
8
9 3
+
7 4
=
57 12
9
+
7
=
19 4
9
7 4
+
4 8
=
18 8
7
+
4
=
9 4
10
8 3
+
1 4
=
35 12
11
1 2
+
6 6
=
9 6
1
+
6
=
3 2
12
6 6
+
3 4
=
21 12
6
+
3
=
7 4
13
3 4
+
2 8
=
8 8
3
+
2
=
1
14
2 8
+
3 9
=
42 72
2
+
3
=
7 12
15
9 3
+
5 6
=
23 6