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분수: 분모가 다른 덧셈9분수9

1
9 9
+
2 3
=
15 9
9
+
2
=
5 3
2
2 3
+
3 7
=
23 21
3
7 8
+
1 9
=
71 72
4
1 9
+
9 3
=
28 9
5
3 9
+
5 3
=
18 9
3
+
5
=
2
6
1 5
+
3 4
=
19 20
7
3 4
+
1 7
=
25 28
8
1 7
+
3 4
=
25 28
9
2 3
+
6 5
=
28 15
10
6 5
+
1 6
=
41 30
11
1 6
+
4 4
=
14 12
1
+
4
=
7 6
12
4 4
+
1 9
=
40 36
4
+
1
=
10 9
13
1 4
+
4 2
=
9 4
14
4 2
+
5 4
=
13 4
15
5 4
+
2 6
=
19 12