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분수: 분모가 다른 덧셈3분수3

1
1 7
+
9 4
=
67 28
2
9 4
+
6 6
=
39 12
9
+
6
=
13 4
3
1 9
+
8 2
=
74 18
1
+
8
=
37 9
4
8 2
+
6 9
=
84 18
8
+
6
=
14 3
5
6 9
+
1 3
=
9 9
6
+
1
=
1
6
3 5
+
1 2
=
11 10
7
1 2
+
6 5
=
17 10
8
6 5
+
3 6
=
51 30
6
+
3
=
17 10
9
6 4
+
1 3
=
22 12
6
+
1
=
11 6
10
1 2
+
5 3
=
13 6
11
5 3
+
7 4
=
41 12
12
7 4
+
4 3
=
37 12
13
4 3
+
1 4
=
19 12
14
1 4
+
2 6
=
7 12
15
6 2
+
1 6
=
19 6