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분수: 분모가 다른 덧셈5분수7

1
7 4
+
1 6
=
23 12
2
1 7
+
5 3
=
38 21
3
5 3
+
3 9
=
18 9
5
+
3
=
2
4
3 9
+
1 2
=
15 18
3
+
1
=
5 6
5
9 2
+
8 6
=
35 6
6
8 6
+
5 8
=
47 24
7
5 8
+
3 3
=
39 24
5
+
3
=
13 8
8
3 3
+
1 5
=
18 15
3
+
1
=
6 5
9
1 5
+
9 6
=
51 30
1
+
9
=
17 10
10
9 6
+
3 3
=
15 6
9
+
3
=
5 2
11
1 7
+
4 8
=
36 56
1
+
4
=
9 14
12
4 8
+
3 9
=
60 72
4
+
3
=
5 6
13
3 9
+
6 4
=
66 36
3
+
6
=
11 6
14
4 2
+
1 8
=
17 8
15
1 8
+
5 2
=
21 8