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분수: 분모가 다른 덧셈3분수5

1
3 5
+
1 4
=
17 20
2
8 4
+
1 3
=
28 12
8
+
1
=
7 3
3
6 3
+
8 4
=
48 12
6
+
8
=
4
4
4 8
+
8 4
=
20 8
4
+
8
=
5 2
5
8 4
+
7 7
=
84 28
8
+
7
=
3
6
7 7
+
1 6
=
49 42
7
+
1
=
7 6
7
6 5
+
1 4
=
29 20
8
1 5
+
4 2
=
22 10
1
+
4
=
11 5
9
2 7
+
1 6
=
19 42
10
1 6
+
2 7
=
19 42
11
2 7
+
1 5
=
17 35
12
1 5
+
8 4
=
44 20
1
+
8
=
11 5
13
8 4
+
5 3
=
44 12
8
+
5
=
11 3
14
5 3
+
1 4
=
23 12
15
1 4
+
5 3
=
23 12