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분수: 분모가 다른 덧셈7분수1

1
2 9
+
1 8
=
25 72
2
8 9
+
1 3
=
11 9
3
3 3
+
1 6
=
7 6
4
9 6
+
1 3
=
11 6
5
1 3
+
5 2
=
17 6
6
5 2
+
2 8
=
22 8
5
+
2
=
11 4
7
2 8
+
9 6
=
42 24
2
+
9
=
7 4
8
9 6
+
3 2
=
18 6
9
+
3
=
3
9
1 2
+
3 3
=
9 6
1
+
3
=
3 2
10
3 3
+
7 6
=
13 6
11
7 6
+
4 5
=
59 30
12
5 4
+
4 2
=
13 4
13
2 2
+
1 3
=
8 6
2
+
1
=
4 3
14
4 3
+
1 9
=
13 9
15
1 9
+
5 4
=
49 36