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분수: 분모가 다른 덧셈4분수2

1
4 2
+
8 6
=
20 6
4
+
8
=
10 3
2
8 6
+
3 4
=
25 12
3
3 4
+
6 8
=
12 8
3
+
6
=
3 2
4
6 8
+
5 5
=
70 40
6
+
5
=
7 4
5
5 5
+
4 4
=
40 20
5
+
4
=
2
6
4 4
+
5 5
=
40 20
4
+
5
=
2
7
5 5
+
2 3
=
25 15
5
+
2
=
5 3
8
1 3
+
7 4
=
25 12
9
7 4
+
9 3
=
57 12
7
+
9
=
19 4
10
4 3
+
1 8
=
35 24
11
1 8
+
5 6
=
23 24
12
5 6
+
3 7
=
53 42
13
7 3
+
5 2
=
29 6
14
5 2
+
3 3
=
21 6
5
+
3
=
7 2
15
3 3
+
1 7
=
24 21
3
+
1
=
8 7