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분수: 분모가 다른 덧셈3분수9

1
3 9
+
1 6
=
9 18
3
+
1
=
1 2
2
1 4
+
8 2
=
17 4
3
8 2
+
6 9
=
84 18
8
+
6
=
14 3
4
9 8
+
1 7
=
71 56
5
1 7
+
5 5
=
40 35
1
+
5
=
8 7
6
1 7
+
2 6
=
20 42
1
+
2
=
10 21
7
2 6
+
1 4
=
7 12
8
1 4
+
3 3
=
15 12
1
+
3
=
5 4
9
3 8
+
1 5
=
23 40
10
5 5
+
3 3
=
30 15
5
+
3
=
2
11
3 3
+
8 9
=
17 9
12
8 9
+
3 6
=
25 18
13
3 6
+
2 3
=
7 6
14
2 3
+
5 2
=
19 6
15
5 2
+
6 3
=
27 6
5
+
6
=
9 2