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분수: 분모가 다른 덧셈3분수4

1
3 4
+
6 7
=
45 28
2
7 3
+
1 5
=
38 15
3
1 5
+
4 4
=
24 20
1
+
4
=
6 5
4
4 4
+
2 9
=
44 36
4
+
2
=
11 9
5
9 6
+
1 4
=
21 12
9
+
1
=
7 4
6
4 5
+
1 9
=
41 45
7
5 9
+
1 3
=
8 9
8
1 3
+
5 8
=
23 24
9
5 8
+
1 9
=
53 72
10
1 9
+
9 7
=
88 63
11
7 2
+
1 6
=
22 6
7
+
1
=
11 3
12
1 6
+
6 3
=
13 6
13
3 9
+
1 3
=
6 9
3
+
1
=
2 3
14
1 3
+
3 2
=
11 6
15
2 3
+
5 2
=
19 6