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분수: 분모가 다른 덧셈1분수3

1
1 3
+
5 5
=
20 15
1
+
5
=
4 3
2
4 5
+
2 8
=
42 40
4
+
2
=
21 20
3
2 8
+
3 6
=
18 24
2
+
3
=
3 4
4
1 7
+
7 8
=
57 56
5
8 5
+
1 9
=
77 45
6
1 9
+
4 3
=
13 9
7
4 3
+
5 4
=
31 12
8
5 4
+
3 9
=
57 36
5
+
3
=
19 12
9
3 9
+
1 3
=
6 9
3
+
1
=
2 3
10
3 2
+
1 3
=
11 6
11
1 3
+
8 5
=
29 15
12
8 5
+
6 3
=
54 15
8
+
6
=
18 5
13
6 3
+
1 5
=
33 15
6
+
1
=
11 5
14
4 5
+
1 4
=
21 20
15
1 4
+
6 5
=
29 20