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분수: 분모가 다른 덧셈4분수0

1
1 5
+
4 8
=
28 40
1
+
4
=
7 10
2
4 8
+
2 4
=
8 8
4
+
2
=
1
3
1 9
+
4 5
=
41 45
4
4 5
+
9 8
=
77 40
5
9 8
+
1 9
=
89 72
6
1 9
+
4 6
=
14 18
1
+
4
=
7 9
7
4 6
+
2 3
=
8 6
4
+
2
=
4 3
8
7 3
+
4 7
=
61 21
9
4 7
+
1 2
=
15 14
10
1 2
+
7 3
=
17 6
11
7 3
+
8 5
=
59 15
12
8 5
+
7 8
=
99 40
13
7 8
+
2 2
=
15 8
14
2 9
+
1 2
=
13 18
15
2 8
+
1 9
=
26 72
2
+
1
=
13 36