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분수: 분모가 다른 덧셈3분수5

1
5 5
+
1 4
=
25 20
5
+
1
=
5 4
2
1 4
+
7 2
=
15 4
3
7 2
+
3 8
=
31 8
4
3 8
+
5 4
=
13 8
5
5 4
+
9 5
=
61 20
6
9 5
+
5 8
=
97 40
7
5 8
+
2 4
=
9 8
8
2 4
+
8 2
=
18 4
2
+
8
=
9 2
9
2 3
+
1 4
=
11 12
10
1 4
+
5 9
=
29 36
11
5 3
+
1 6
=
11 6
12
5 6
+
1 3
=
7 6
13
3 7
+
1 4
=
19 28
14
9 4
+
8 5
=
77 20
15
8 5
+
3 9
=
87 45
8
+
3
=
29 15