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분수: 분모가 다른 덧셈3분수8

1
3 8
+
9 2
=
39 8
2
9 2
+
4 8
=
40 8
9
+
4
=
5
3
8 4
+
2 9
=
80 36
8
+
2
=
20 9
4
2 9
+
9 3
=
29 9
5
9 3
+
1 5
=
48 15
9
+
1
=
16 5
6
1 5
+
4 2
=
22 10
1
+
4
=
11 5
7
4 2
+
6 9
=
48 18
4
+
6
=
8 3
8
6 9
+
5 3
=
21 9
6
+
5
=
7 3
9
5 3
+
2 5
=
31 15
10
2 5
+
4 6
=
32 30
2
+
4
=
16 15
11
1 6
+
5 4
=
17 12
12
8 4
+
1 9
=
76 36
8
+
1
=
19 9
13
1 9
+
6 3
=
19 9
14
6 3
+
7 5
=
51 15
6
+
7
=
17 5
15
2 5
+
5 8
=
41 40