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분수: 분모가 다른 덧셈3분수4

1
3 4
+
9 5
=
51 20
2
9 5
+
7 9
=
116 45
3
9 3
+
1 9
=
28 9
4
1 9
+
4 3
=
13 9
5
4 3
+
6 7
=
46 21
6
6 7
+
2 6
=
50 42
6
+
2
=
25 21
7
2 6
+
9 3
=
20 6
2
+
9
=
10 3
8
9 3
+
2 9
=
29 9
9
2 9
+
4 6
=
16 18
2
+
4
=
8 9
10
4 6
+
2 2
=
10 6
4
+
2
=
5 3
11
2 2
+
9 4
=
13 4
12
9 4
+
4 3
=
43 12
13
3 4
+
2 6
=
13 12
14
2 6
+
1 7
=
20 42
2
+
1
=
10 21
15
1 7
+
5 3
=
38 21