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분수: 분모가 다른 덧셈7분수2

1
7 2
+
2 8
=
30 8
7
+
2
=
15 4
2
8 3
+
1 8
=
67 24
3
1 5
+
4 9
=
29 45
4
9 4
+
6 3
=
51 12
9
+
6
=
17 4
5
6 3
+
8 4
=
48 12
6
+
8
=
4
6
8 4
+
4 2
=
16 4
8
+
4
=
4
7
4 2
+
2 4
=
10 4
4
+
2
=
5 2
8
2 4
+
1 6
=
8 12
2
+
1
=
2 3
9
1 6
+
3 3
=
7 6
10
3 3
+
4 2
=
18 6
3
+
4
=
3
11
2 4
+
1 3
=
10 12
2
+
1
=
5 6
12
1 3
+
9 7
=
34 21
13
9 7
+
6 2
=
60 14
9
+
6
=
30 7
14
6 2
+
1 3
=
20 6
6
+
1
=
10 3
15
1 3
+
8 2
=
26 6
1
+
8
=
13 3