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분수: 분모가 다른 덧셈1분수5

1
1 5
+
3 6
=
21 30
1
+
3
=
7 10
2
6 3
+
4 4
=
36 12
6
+
4
=
3
3
4 4
+
7 5
=
48 20
4
+
7
=
12 5
4
7 5
+
5 9
=
88 45
5
5 9
+
3 5
=
52 45
6
3 5
+
8 2
=
46 10
3
+
8
=
23 5
7
2 5
+
1 2
=
9 10
8
9 2
+
4 5
=
53 10
9
4 5
+
6 2
=
38 10
4
+
6
=
19 5
10
6 2
+
7 6
=
25 6
11
7 6
+
4 9
=
29 18
12
3 9
+
7 5
=
78 45
3
+
7
=
26 15
13
7 2
+
1 7
=
51 14
14
1 7
+
5 3
=
38 21
15
5 3
+
9 2
=
37 6