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분수: 분모가 다른 덧셈2분수3

1
5 3
+
9 5
=
52 15
2
1 8
+
4 9
=
41 72
3
9 3
+
1 9
=
28 9
4
1 8
+
6 3
=
51 24
1
+
6
=
17 8
5
1 5
+
3 3
=
18 15
1
+
3
=
6 5
6
3 3
+
7 8
=
45 24
3
+
7
=
15 8
7
7 8
+
4 5
=
67 40
8
4 5
+
2 8
=
42 40
4
+
2
=
21 20
9
8 2
+
1 3
=
26 6
8
+
1
=
13 3
10
1 3
+
4 2
=
14 6
1
+
4
=
7 3
11
4 2
+
8 9
=
52 18
4
+
8
=
26 9
12
9 6
+
1 3
=
11 6
13
1 3
+
5 9
=
8 9
14
5 9
+
9 2
=
91 18
15
9 2
+
5 5
=
55 10
9
+
5
=
11 2