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분수: 분모가 다른 덧셈3분수9

1
1 2
+
9 4
=
11 4
2
1 6
+
3 7
=
25 42
3
7 3
+
5 6
=
19 6
4
5 6
+
1 4
=
13 12
5
1 4
+
2 5
=
13 20
6
2 5
+
6 4
=
38 20
2
+
6
=
19 10
7
6 4
+
2 9
=
62 36
6
+
2
=
31 18
8
2 9
+
8 4
=
80 36
2
+
8
=
20 9
9
8 4
+
5 7
=
76 28
8
+
5
=
19 7
10
5 7
+
1 2
=
17 14
11
2 9
+
1 4
=
17 36
12
1 4
+
4 2
=
9 4
13
4 2
+
2 9
=
40 18
4
+
2
=
20 9
14
9 2
+
6 9
=
93 18
9
+
6
=
31 6
15
6 9
+
4 6
=
24 18
6
+
4
=
4 3