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분수: 분모가 다른 덧셈3분수9

1
3 9
+
5 4
=
57 36
3
+
5
=
19 12
2
4 4
+
3 3
=
24 12
4
+
3
=
2
3
3 3
+
5 4
=
27 12
3
+
5
=
9 4
4
2 4
+
4 8
=
8 8
2
+
4
=
1
5
8 4
+
1 7
=
60 28
8
+
1
=
15 7
6
7 5
+
1 7
=
54 35
7
1 7
+
4 2
=
30 14
1
+
4
=
15 7
8
4 2
+
2 7
=
32 14
4
+
2
=
16 7
9
2 7
+
4 5
=
38 35
10
4 5
+
5 6
=
49 30
11
6 5
+
2 4
=
34 20
6
+
2
=
17 10
12
2 4
+
3 5
=
22 20
2
+
3
=
11 10
13
3 5
+
5 7
=
46 35
14
5 7
+
1 3
=
22 21
15
1 3
+
6 8
=
26 24
1
+
6
=
13 12