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분수: 분모가 다른 덧셈5분수7

1
5 7
+
6 3
=
57 21
5
+
6
=
19 7
2
6 3
+
9 6
=
21 6
6
+
9
=
7 2
3
9 6
+
2 8
=
42 24
9
+
2
=
7 4
4
1 2
+
8 8
=
12 8
1
+
8
=
3 2
5
8 8
+
5 7
=
96 56
8
+
5
=
12 7
6
5 7
+
1 2
=
17 14
7
1 2
+
7 7
=
21 14
1
+
7
=
3 2
8
7 7
+
1 4
=
35 28
7
+
1
=
5 4
9
1 4
+
6 3
=
27 12
1
+
6
=
9 4
10
3 3
+
1 8
=
27 24
3
+
1
=
9 8
11
1 8
+
3 7
=
31 56
12
3 7
+
4 9
=
55 63
13
4 9
+
1 2
=
17 18
14
2 2
+
8 3
=
22 6
2
+
8
=
11 3
15
8 3
+
4 9
=
28 9