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분수: 분모가 다른 덧셈1분수5

1
5 7
+
1 4
=
27 28
2
4 9
+
1 4
=
25 36
3
7 4
+
5 8
=
19 8
4
5 8
+
2 9
=
61 72
5
9 4
+
1 7
=
67 28
6
1 7
+
8 9
=
65 63
7
8 9
+
5 6
=
31 18
8
5 6
+
2 3
=
9 6
5
+
2
=
3 2
9
2 3
+
7 9
=
13 9
10
7 9
+
8 5
=
107 45
11
1 2
+
3 5
=
11 10
12
2 5
+
3 3
=
21 15
2
+
3
=
7 5
13
3 3
+
6 5
=
33 15
3
+
6
=
11 5
14
6 5
+
3 8
=
63 40
15
3 8
+
2 2
=
11 8