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분수: 분모가 다른 덧셈3분수2

1
3 2
+
8 4
=
14 4
3
+
8
=
7 2
2
8 4
+
5 2
=
18 4
8
+
5
=
9 2
3
2 2
+
1 3
=
8 6
2
+
1
=
4 3
4
3 3
+
1 4
=
15 12
3
+
1
=
5 4
5
1 6
+
2 3
=
5 6
6
2 3
+
3 8
=
25 24
7
3 8
+
9 9
=
99 72
3
+
9
=
11 8
8
9 9
+
5 2
=
63 18
9
+
5
=
7 2
9
5 2
+
9 8
=
29 8
10
9 8
+
1 5
=
53 40
11
2 9
+
7 3
=
23 9
12
7 3
+
5 5
=
50 15
7
+
5
=
10 3
13
5 6
+
1 7
=
41 42
14
1 7
+
2 2
=
16 14
1
+
2
=
8 7
15
2 2
+
3 4
=
7 4