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분수: 분모가 다른 덧셈2분수0

1
2 9
+
3 8
=
43 72
2
8 5
+
1 3
=
29 15
3
7 3
+
2 4
=
34 12
7
+
2
=
17 6
4
2 4
+
3 2
=
8 4
2
+
3
=
2
5
3 2
+
4 4
=
10 4
3
+
4
=
5 2
6
4 4
+
7 2
=
18 4
4
+
7
=
9 2
7
2 9
+
1 8
=
25 72
8
1 5
+
4 7
=
27 35
9
4 7
+
1 2
=
15 14
10
1 2
+
7 3
=
17 6
11
7 3
+
2 5
=
41 15
12
2 5
+
3 9
=
33 45
2
+
3
=
11 15
13
3 9
+
1 2
=
15 18
3
+
1
=
5 6
14
1 2
+
5 5
=
15 10
1
+
5
=
3 2
15
5 7
+
1 8
=
47 56