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분수: 분모가 다른 덧셈9분수1

1
5 7
+
1 4
=
27 28
2
1 4
+
6 9
=
33 36
1
+
6
=
11 12
3
6 9
+
2 8
=
66 72
6
+
2
=
11 12
4
1 3
+
7 7
=
28 21
1
+
7
=
4 3
5
7 6
+
1 7
=
55 42
6
7 8
+
1 7
=
57 56
7
1 7
+
3 4
=
25 28
8
3 4
+
5 8
=
11 8
9
5 8
+
4 9
=
77 72
10
4 9
+
3 6
=
17 18
11
3 6
+
5 2
=
18 6
3
+
5
=
3
12
5 2
+
8 4
=
18 4
5
+
8
=
9 2
13
8 4
+
7 9
=
100 36
8
+
7
=
25 9
14
7 9
+
1 8
=
65 72
15
1 3
+
3 6
=
5 6