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분수: 분모가 다른 덧셈3분수5

1
5 9
+
1 4
=
29 36
2
1 4
+
3 8
=
5 8
3
8 2
+
1 3
=
26 6
8
+
1
=
13 3
4
1 3
+
2 4
=
10 12
1
+
2
=
5 6
5
9 4
+
7 3
=
55 12
6
7 3
+
9 9
=
30 9
7
+
9
=
10 3
7
9 9
+
5 2
=
63 18
9
+
5
=
7 2
8
5 2
+
1 8
=
21 8
9
1 8
+
4 5
=
37 40
10
4 5
+
5 6
=
49 30
11
6 8
+
1 6
=
22 24
6
+
1
=
11 12
12
1 6
+
2 5
=
17 30
13
2 5
+
1 3
=
11 15
14
1 3
+
4 7
=
19 21
15
4 7
+
9 3
=
75 21
4
+
9
=
25 7