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분수: 분모가 다른 덧셈4분수5

1
4 5
+
2 8
=
42 40
4
+
2
=
21 20
2
2 8
+
6 5
=
58 40
2
+
6
=
29 20
3
6 5
+
7 7
=
77 35
6
+
7
=
11 5
4
7 7
+
3 3
=
42 21
7
+
3
=
2
5
3 3
+
4 6
=
10 6
3
+
4
=
5 3
6
4 6
+
2 5
=
32 30
4
+
2
=
16 15
7
2 5
+
6 8
=
46 40
2
+
6
=
23 20
8
6 8
+
3 3
=
42 24
6
+
3
=
7 4
9
1 9
+
9 2
=
83 18
10
9 2
+
8 3
=
43 6
11
8 3
+
2 6
=
18 6
8
+
2
=
3
12
6 2
+
3 5
=
36 10
6
+
3
=
18 5
13
3 5
+
7 3
=
44 15
14
7 3
+
3 9
=
24 9
7
+
3
=
8 3
15
3 9
+
2 2
=
24 18
3
+
2
=
4 3