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분수: 분모가 다른 덧셈2분수8

1
2 8
+
3 5
=
34 40
2
+
3
=
17 20
2
3 5
+
8 2
=
46 10
3
+
8
=
23 5
3
1 2
+
9 9
=
27 18
1
+
9
=
3 2
4
9 9
+
5 4
=
81 36
9
+
5
=
9 4
5
4 2
+
1 7
=
30 14
4
+
1
=
15 7
6
1 7
+
7 5
=
54 35
7
7 5
+
5 7
=
74 35
8
5 7
+
4 5
=
53 35
9
4 5
+
1 2
=
13 10
10
1 2
+
2 9
=
13 18
11
2 9
+
4 5
=
46 45
12
9 5
+
8 2
=
58 10
9
+
8
=
29 5
13
2 2
+
7 4
=
11 4
14
1 7
+
4 4
=
32 28
1
+
4
=
8 7
15
4 4
+
2 8
=
10 8
4
+
2
=
5 4