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분수: 분모가 다른 덧셈4분수9

1
4 9
+
8 3
=
28 9
2
8 3
+
7 4
=
53 12
3
7 4
+
8 2
=
23 4
4
8 2
+
4 8
=
36 8
8
+
4
=
9 2
5
3 8
+
4 2
=
19 8
6
4 2
+
3 5
=
26 10
4
+
3
=
13 5
7
3 5
+
5 9
=
52 45
8
5 9
+
4 6
=
22 18
5
+
4
=
11 9
9
4 6
+
6 2
=
22 6
4
+
6
=
11 3
10
6 2
+
1 8
=
25 8
11
8 4
+
1 7
=
60 28
8
+
1
=
15 7
12
1 7
+
2 6
=
20 42
1
+
2
=
10 21
13
2 6
+
5 7
=
44 42
2
+
5
=
22 21
14
7 5
+
1 3
=
26 15
15
1 2
+
4 9
=
17 18