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분수: 분모가 다른 덧셈1분수4

1
4 7
+
1 4
=
23 28
2
1 4
+
4 3
=
19 12
3
4 3
+
9 2
=
35 6
4
9 2
+
2 5
=
49 10
5
2 5
+
1 2
=
9 10
6
1 8
+
8 4
=
17 8
7
8 4
+
4 8
=
20 8
8
+
4
=
5 2
8
4 8
+
1 3
=
20 24
4
+
1
=
5 6
9
1 3
+
8 9
=
11 9
10
8 9
+
2 8
=
82 72
8
+
2
=
41 36
11
2 8
+
5 4
=
12 8
2
+
5
=
3 2
12
5 4
+
7 3
=
43 12
13
5 3
+
1 9
=
16 9
14
1 9
+
9 2
=
83 18
15
2 5
+
1 3
=
11 15