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분수: 분모가 다른 덧셈4분수7

1
4 7
+
8 2
=
64 14
4
+
8
=
32 7
2
8 2
+
9 4
=
25 4
3
9 4
+
1 7
=
67 28
4
1 7
+
4 6
=
34 42
1
+
4
=
17 21
5
4 6
+
2 8
=
22 24
4
+
2
=
11 12
6
2 8
+
1 9
=
26 72
2
+
1
=
13 36
7
1 9
+
4 8
=
44 72
1
+
4
=
11 18
8
4 8
+
9 4
=
22 8
4
+
9
=
11 4
9
9 4
+
4 3
=
43 12
10
3 8
+
1 5
=
23 40
11
1 5
+
6 8
=
38 40
1
+
6
=
19 20
12
6 8
+
8 4
=
22 8
6
+
8
=
11 4
13
4 3
+
1 4
=
19 12
14
1 4
+
5 2
=
11 4
15
5 2
+
3 8
=
23 8