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분수: 분모가 다른 덧셈6분수2

1
6 2
+
8 4
=
20 4
6
+
8
=
5
2
4 9
+
1 4
=
25 36
3
1 4
+
7 6
=
17 12
4
6 4
+
1 2
=
8 4
6
+
1
=
2
5
6 2
+
8 4
=
20 4
6
+
8
=
5
6
8 4
+
1 8
=
17 8
7
1 2
+
5 5
=
15 10
1
+
5
=
3 2
8
5 5
+
4 2
=
30 10
5
+
4
=
3
9
4 2
+
1 6
=
13 6
10
1 8
+
5 6
=
23 24
11
5 6
+
6 3
=
17 6
12
1 3
+
2 9
=
5 9
13
2 9
+
4 4
=
44 36
2
+
4
=
11 9
14
4 4
+
3 2
=
10 4
4
+
3
=
5 2
15
3 2
+
8 9
=
43 18