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분수: 분모가 다른 덧셈1분수4

1
1 3
+
2 2
=
8 6
1
+
2
=
4 3
2
6 2
+
5 4
=
17 4
3
5 4
+
2 3
=
23 12
4
2 3
+
1 6
=
5 6
5
1 6
+
3 5
=
23 30
6
3 5
+
9 9
=
72 45
3
+
9
=
8 5
7
9 4
+
1 3
=
31 12
8
1 3
+
5 2
=
17 6
9
5 2
+
4 4
=
14 4
5
+
4
=
7 2
10
4 7
+
9 3
=
75 21
4
+
9
=
25 7
11
9 3
+
7 6
=
25 6
12
7 6
+
1 9
=
23 18
13
1 9
+
5 2
=
47 18
14
5 2
+
4 4
=
14 4
5
+
4
=
7 2
15
1 2
+
7 3
=
17 6