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분수: 분모가 다른 덧셈1분수1

1
1 2
+
3 4
=
5 4
2
1 8
+
5 5
=
45 40
1
+
5
=
9 8
3
1 6
+
8 3
=
17 6
4
3 4
+
1 9
=
31 36
5
2 4
+
1 8
=
5 8
6
1 8
+
3 5
=
29 40
7
3 5
+
4 4
=
32 20
3
+
4
=
8 5
8
4 4
+
2 7
=
36 28
4
+
2
=
9 7
9
7 7
+
1 4
=
35 28
7
+
1
=
5 4
10
1 4
+
7 7
=
35 28
1
+
7
=
5 4
11
7 7
+
1 2
=
21 14
7
+
1
=
3 2
12
1 2
+
3 5
=
11 10
13
3 5
+
9 7
=
66 35
14
9 7
+
4 5
=
73 35
15
4 5
+
6 2
=
38 10
4
+
6
=
19 5