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분수: 분모가 다른 덧셈4분수6

1
6 3
+
1 5
=
33 15
6
+
1
=
11 5
2
1 5
+
4 3
=
23 15
3
3 4
+
4 5
=
31 20
4
4 5
+
5 3
=
37 15
5
5 3
+
3 2
=
19 6
6
3 2
+
7 3
=
23 6
7
7 9
+
1 6
=
17 18
8
6 5
+
1 2
=
17 10
9
1 7
+
3 6
=
27 42
1
+
3
=
9 14
10
3 6
+
2 9
=
13 18
11
2 9
+
4 2
=
40 18
2
+
4
=
20 9
12
6 4
+
5 5
=
50 20
6
+
5
=
5 2
13
5 5
+
2 2
=
20 10
5
+
2
=
2
14
1 5
+
7 2
=
37 10
15
1 6
+
2 7
=
19 42