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분수: 분모가 다른 덧셈2분수1

1
1 7
+
3 4
=
25 28
2
3 4
+
5 2
=
13 4
3
2 2
+
7 5
=
24 10
2
+
7
=
12 5
4
5 7
+
4 9
=
73 63
5
4 9
+
7 6
=
29 18
6
6 7
+
1 9
=
61 63
7
2 9
+
4 6
=
16 18
2
+
4
=
8 9
8
6 2
+
1 3
=
20 6
6
+
1
=
10 3
9
1 2
+
2 8
=
6 8
1
+
2
=
3 4
10
8 9
+
1 8
=
73 72
11
1 8
+
6 5
=
53 40
12
6 5
+
8 6
=
76 30
6
+
8
=
38 15
13
6 5
+
1 6
=
41 30
14
6 3
+
1 5
=
33 15
6
+
1
=
11 5
15
1 2
+
7 4
=
9 4