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분수: 분모가 다른 덧셈3분수3

1
1 3
+
6 2
=
20 6
1
+
6
=
10 3
2
6 2
+
4 4
=
16 4
6
+
4
=
4
3
4 4
+
8 8
=
16 8
4
+
8
=
2
4
8 8
+
6 2
=
32 8
8
+
6
=
4
5
2 8
+
1 5
=
18 40
2
+
1
=
9 20
6
1 5
+
6 2
=
32 10
1
+
6
=
16 5
7
6 2
+
1 6
=
19 6
8
1 7
+
3 5
=
26 35
9
3 5
+
7 3
=
44 15
10
7 3
+
9 8
=
83 24
11
9 8
+
5 3
=
67 24
12
4 5
+
2 3
=
22 15
13
2 3
+
1 5
=
13 15
14
1 5
+
4 4
=
24 20
1
+
4
=
6 5
15
1 4
+
6 7
=
31 28