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분수: 분모가 다른 덧셈4분수7

1
4 7
+
8 3
=
68 21
2
1 6
+
3 2
=
10 6
1
+
3
=
5 3
3
3 2
+
4 6
=
13 6
4
4 6
+
8 2
=
28 6
4
+
8
=
14 3
5
2 5
+
1 6
=
17 30
6
1 9
+
5 6
=
17 18
7
5 6
+
1 5
=
31 30
8
1 5
+
5 6
=
31 30
9
6 8
+
1 2
=
10 8
6
+
1
=
5 4
10
1 2
+
9 6
=
12 6
1
+
9
=
2
11
9 6
+
7 4
=
39 12
9
+
7
=
13 4
12
7 4
+
5 7
=
69 28
13
7 4
+
1 7
=
53 28
14
7 7
+
1 4
=
35 28
7
+
1
=
5 4
15
1 4
+
4 9
=
25 36