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분수: 분모가 다른 덧셈3분수9

1
3 9
+
4 7
=
57 63
3
+
4
=
19 21
2
4 7
+
7 3
=
61 21
3
1 3
+
2 5
=
11 15
4
2 5
+
9 6
=
57 30
2
+
9
=
19 10
5
9 6
+
2 7
=
75 42
9
+
2
=
25 14
6
7 2
+
3 6
=
24 6
7
+
3
=
4
7
3 6
+
5 9
=
19 18
8
9 5
+
2 6
=
64 30
9
+
2
=
32 15
9
2 6
+
7 5
=
52 30
2
+
7
=
26 15
10
7 5
+
8 9
=
103 45
11
8 9
+
4 3
=
20 9
12
4 3
+
9 2
=
35 6
13
2 9
+
4 4
=
44 36
2
+
4
=
11 9
14
1 9
+
6 4
=
58 36
1
+
6
=
29 18
15
6 4
+
4 8
=
16 8
6
+
4
=
2