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분수: 분모가 다른 덧셈5분수5

1
1 5
+
6 8
=
38 40
1
+
6
=
19 20
2
6 8
+
4 7
=
74 56
6
+
4
=
37 28
3
4 7
+
2 4
=
30 28
4
+
2
=
15 14
4
3 7
+
1 3
=
16 21
5
1 3
+
7 4
=
25 12
6
7 4
+
3 6
=
27 12
7
+
3
=
9 4
7
3 6
+
5 2
=
18 6
3
+
5
=
3
8
5 2
+
4 4
=
14 4
5
+
4
=
7 2
9
4 4
+
8 6
=
28 12
4
+
8
=
7 3
10
8 6
+
4 7
=
80 42
8
+
4
=
40 21
11
1 4
+
5 2
=
11 4
12
5 2
+
6 8
=
26 8
5
+
6
=
13 4
13
6 8
+
1 4
=
8 8
6
+
1
=
1
14
1 4
+
4 2
=
9 4
15
2 4
+
6 3
=
30 12
2
+
6
=
5 2