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분수: 분모가 다른 덧셈1분수2

1
1 7
+
9 4
=
67 28
2
9 4
+
2 5
=
53 20
3
2 5
+
1 8
=
21 40
4
1 8
+
4 5
=
37 40
5
4 5
+
1 3
=
17 15
6
1 3
+
3 9
=
6 9
1
+
3
=
2 3
7
9 3
+
8 6
=
26 6
9
+
8
=
13 3
8
1 9
+
6 2
=
56 18
1
+
6
=
28 9
9
6 2
+
8 5
=
46 10
6
+
8
=
23 5
10
8 5
+
3 9
=
87 45
8
+
3
=
29 15
11
5 9
+
6 4
=
74 36
5
+
6
=
37 18
12
6 4
+
1 3
=
22 12
6
+
1
=
11 6
13
1 3
+
5 6
=
7 6
14
5 6
+
3 4
=
19 12
15
3 4
+
1 3
=
13 12