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분수: 분모가 다른 덧셈2분수1

1
1 2
+
2 4
=
4 4
1
+
2
=
1
2
2 4
+
8 5
=
42 20
2
+
8
=
21 10
3
5 8
+
2 4
=
9 8
4
2 4
+
8 9
=
50 36
2
+
8
=
25 18
5
8 9
+
4 8
=
100 72
8
+
4
=
25 18
6
4 8
+
6 7
=
76 56
4
+
6
=
19 14
7
1 5
+
3 6
=
21 30
1
+
3
=
7 10
8
3 6
+
9 5
=
69 30
3
+
9
=
23 10
9
9 5
+
6 9
=
111 45
9
+
6
=
37 15
10
6 9
+
2 5
=
48 45
6
+
2
=
16 15
11
5 5
+
4 8
=
60 40
5
+
4
=
3 2
12
4 8
+
9 5
=
92 40
4
+
9
=
23 10
13
2 5
+
1 3
=
11 15
14
1 3
+
2 6
=
4 6
1
+
2
=
2 3
15
2 6
+
5 4
=
19 12