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분수: 분모가 다른 덧셈4분수8

1
4 8
+
1 5
=
28 40
4
+
1
=
7 10
2
1 5
+
4 2
=
22 10
1
+
4
=
11 5
3
4 2
+
6 7
=
40 14
4
+
6
=
20 7
4
7 3
+
1 5
=
38 15
5
1 7
+
8 5
=
61 35
6
8 5
+
3 9
=
87 45
8
+
3
=
29 15
7
3 9
+
2 6
=
12 18
3
+
2
=
2 3
8
2 6
+
3 5
=
28 30
2
+
3
=
14 15
9
5 3
+
3 2
=
19 6
10
3 2
+
8 4
=
14 4
3
+
8
=
7 2
11
4 6
+
1 5
=
26 30
4
+
1
=
13 15
12
1 5
+
3 7
=
22 35
13
3 7
+
7 9
=
76 63
14
7 9
+
1 4
=
37 36
15
1 4
+
4 8
=
6 8
1
+
4
=
3 4