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분수: 분모가 다른 덧셈1분수2

1
1 2
+
3 7
=
13 14
2
3 7
+
6 4
=
54 28
3
+
6
=
27 14
3
2 4
+
9 5
=
46 20
2
+
9
=
23 10
4
9 5
+
2 6
=
64 30
9
+
2
=
32 15
5
2 6
+
1 5
=
16 30
2
+
1
=
8 15
6
1 5
+
3 4
=
19 20
7
4 6
+
1 8
=
19 24
8
1 8
+
5 2
=
21 8
9
2 8
+
8 3
=
70 24
2
+
8
=
35 12
10
8 3
+
4 4
=
44 12
8
+
4
=
11 3
11
4 4
+
2 9
=
44 36
4
+
2
=
11 9
12
2 9
+
5 6
=
19 18
13
5 6
+
1 3
=
7 6
14
1 3
+
2 2
=
8 6
1
+
2
=
4 3
15
2 2
+
4 5
=
18 10
2
+
4
=
9 5