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분수: 분모가 다른 덧셈2분수7

1
2 7
+
9 5
=
73 35
2
9 5
+
1 4
=
41 20
3
1 4
+
2 8
=
4 8
1
+
2
=
1 2
4
2 8
+
9 7
=
86 56
2
+
9
=
43 28
5
9 7
+
1 3
=
34 21
6
1 3
+
8 5
=
29 15
7
8 5
+
3 3
=
39 15
8
+
3
=
13 5
8
1 7
+
7 4
=
53 28
9
4 6
+
1 4
=
11 12
10
1 4
+
2 3
=
11 12
11
2 3
+
5 4
=
23 12
12
5 4
+
8 6
=
31 12
13
8 6
+
2 9
=
28 18
8
+
2
=
14 9
14
7 2
+
3 9
=
69 18
7
+
3
=
23 6
15
3 9
+
1 6
=
9 18
3
+
1
=
1 2