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분수: 분모가 다른 덧셈4분수6

1
6 5
+
1 3
=
23 15
2
1 4
+
5 7
=
27 28
3
5 7
+
3 9
=
66 63
5
+
3
=
22 21
4
3 9
+
6 5
=
69 45
3
+
6
=
23 15
5
6 5
+
9 3
=
63 15
6
+
9
=
21 5
6
5 3
+
4 8
=
52 24
5
+
4
=
13 6
7
8 3
+
1 5
=
43 15
8
1 5
+
7 3
=
38 15
9
7 3
+
9 7
=
76 21
10
9 7
+
1 6
=
61 42
11
1 6
+
9 5
=
59 30
12
9 5
+
2 4
=
46 20
9
+
2
=
23 10
13
2 2
+
4 3
=
14 6
2
+
4
=
7 3
14
4 3
+
2 7
=
34 21
15
7 8
+
1 5
=
43 40