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분수: 분모가 다른 덧셈2분수9

1
2 9
+
1 2
=
13 18
2
1 2
+
5 4
=
7 4
3
5 4
+
2 8
=
12 8
5
+
2
=
3 2
4
2 8
+
7 5
=
66 40
2
+
7
=
33 20
5
5 5
+
9 6
=
75 30
5
+
9
=
5 2
6
9 6
+
1 4
=
21 12
9
+
1
=
7 4
7
4 9
+
1 5
=
29 45
8
1 5
+
2 4
=
14 20
1
+
2
=
7 10
9
2 4
+
8 8
=
12 8
2
+
8
=
3 2
10
8 8
+
6 2
=
32 8
8
+
6
=
4
11
6 2
+
4 3
=
26 6
6
+
4
=
13 3
12
4 3
+
1 7
=
31 21
13
1 7
+
2 4
=
18 28
1
+
2
=
9 14
14
2 4
+
1 6
=
8 12
2
+
1
=
2 3
15
6 2
+
1 4
=
13 4