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분수: 분모가 다른 덧셈3분수8

1
3 8
+
1 5
=
23 40
2
5 6
+
1 5
=
31 30
3
1 4
+
2 5
=
13 20
4
2 5
+
8 2
=
44 10
2
+
8
=
22 5
5
8 2
+
4 4
=
20 4
8
+
4
=
5
6
7 4
+
9 8
=
23 8
7
9 8
+
2 4
=
13 8
8
3 4
+
2 3
=
17 12
9
3 4
+
1 7
=
25 28
10
7 2
+
1 6
=
22 6
7
+
1
=
11 3
11
1 6
+
3 4
=
11 12
12
3 4
+
2 2
=
7 4
13
2 2
+
8 7
=
30 14
2
+
8
=
15 7
14
8 7
+
5 6
=
83 42
15
6 2
+
1 6
=
19 6