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분수: 분모가 다른 덧셈1분수3

1
1 3
+
8 4
=
28 12
1
+
8
=
7 3
2
8 4
+
6 2
=
20 4
8
+
6
=
5
3
4 2
+
5 7
=
38 14
4
+
5
=
19 7
4
5 7
+
2 5
=
39 35
5
2 5
+
8 4
=
48 20
2
+
8
=
12 5
6
8 4
+
4 3
=
40 12
8
+
4
=
10 3
7
3 6
+
1 8
=
15 24
3
+
1
=
5 8
8
1 8
+
5 9
=
49 72
9
5 9
+
4 8
=
76 72
5
+
4
=
19 18
10
4 8
+
1 4
=
6 8
4
+
1
=
3 4
11
3 2
+
5 4
=
11 4
12
7 5
+
3 6
=
57 30
7
+
3
=
19 10
13
3 4
+
1 9
=
31 36
14
9 6
+
1 2
=
12 6
9
+
1
=
2
15
1 2
+
5 4
=
7 4