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분수: 분모가 다른 덧셈2분수4

1
2 4
+
8 5
=
42 20
2
+
8
=
21 10
2
8 5
+
2 8
=
74 40
8
+
2
=
37 20
3
5 8
+
6 2
=
29 8
4
6 2
+
8 4
=
20 4
6
+
8
=
5
5
8 4
+
1 6
=
26 12
8
+
1
=
13 6
6
5 9
+
2 5
=
43 45
7
2 5
+
3 6
=
27 30
2
+
3
=
9 10
8
3 6
+
2 5
=
27 30
3
+
2
=
9 10
9
5 2
+
3 4
=
13 4
10
4 2
+
1 3
=
14 6
4
+
1
=
7 3
11
1 3
+
7 9
=
10 9
12
2 9
+
1 3
=
5 9
13
3 4
+
1 5
=
19 20
14
1 5
+
9 3
=
48 15
1
+
9
=
16 5
15
9 3
+
1 8
=
75 24
9
+
1
=
25 8