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분수: 분모가 다른 덧셈6분수3

1
6 3
+
2 8
=
54 24
6
+
2
=
9 4
2
2 8
+
1 7
=
22 56
2
+
1
=
11 28
3
1 7
+
6 4
=
46 28
1
+
6
=
23 14
4
6 4
+
8 3
=
50 12
6
+
8
=
25 6
5
2 3
+
5 2
=
19 6
6
9 2
+
4 4
=
22 4
9
+
4
=
11 2
7
6 4
+
2 2
=
10 4
6
+
2
=
5 2
8
2 2
+
9 9
=
36 18
2
+
9
=
2
9
9 9
+
1 8
=
81 72
9
+
1
=
9 8
10
1 8
+
3 2
=
13 8
11
1 2
+
7 7
=
21 14
1
+
7
=
3 2
12
2 7
+
7 2
=
53 14
13
2 7
+
3 2
=
25 14
14
3 2
+
4 5
=
23 10
15
5 4
+
2 3
=
23 12