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분수: 분모가 다른 덧셈4분수1

1
6 4
+
1 7
=
46 28
6
+
1
=
23 14
2
2 4
+
1 8
=
5 8
3
1 8
+
7 2
=
29 8
4
7 2
+
3 6
=
24 6
7
+
3
=
4
5
1 6
+
2 3
=
5 6
6
1 5
+
4 8
=
28 40
1
+
4
=
7 10
7
4 8
+
2 5
=
36 40
4
+
2
=
9 10
8
2 5
+
4 3
=
26 15
9
4 3
+
8 8
=
56 24
4
+
8
=
7 3
10
8 8
+
6 9
=
120 72
8
+
6
=
5 3
11
6 9
+
2 8
=
66 72
6
+
2
=
11 12
12
2 8
+
5 3
=
46 24
2
+
5
=
23 12
13
5 3
+
1 9
=
16 9
14
3 5
+
1 2
=
11 10
15
1 2
+
4 7
=
15 14