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분수: 분모가 다른 덧셈4분수1

1
1 4
+
2 7
=
15 28
2
2 7
+
1 8
=
23 56
3
1 8
+
2 2
=
9 8
4
2 2
+
5 3
=
16 6
2
+
5
=
8 3
5
3 5
+
7 6
=
53 30
6
6 7
+
2 4
=
38 28
6
+
2
=
19 14
7
9 2
+
1 7
=
65 14
8
1 2
+
7 3
=
17 6
9
7 3
+
3 2
=
23 6
10
3 2
+
1 3
=
11 6
11
1 3
+
5 5
=
20 15
1
+
5
=
4 3
12
5 5
+
4 3
=
35 15
5
+
4
=
7 3
13
4 3
+
2 2
=
14 6
4
+
2
=
7 3
14
2 2
+
3 6
=
9 6
2
+
3
=
3 2
15
3 6
+
1 2
=
6 6
3
+
1
=
1