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분수: 분모가 다른 덧셈2분수5

1
2 5
+
8 4
=
48 20
2
+
8
=
12 5
2
8 4
+
4 2
=
16 4
8
+
4
=
4
3
4 2
+
3 6
=
15 6
4
+
3
=
5 2
4
3 6
+
8 4
=
30 12
3
+
8
=
5 2
5
8 4
+
3 7
=
68 28
8
+
3
=
17 7
6
3 7
+
6 5
=
57 35
7
6 5
+
4 6
=
56 30
6
+
4
=
28 15
8
4 6
+
1 3
=
6 6
4
+
1
=
1
9
3 2
+
1 3
=
11 6
10
1 3
+
4 4
=
16 12
1
+
4
=
4 3
11
9 4
+
2 7
=
71 28
12
2 7
+
5 8
=
51 56
13
5 8
+
6 6
=
39 24
5
+
6
=
13 8
14
6 6
+
1 9
=
20 18
6
+
1
=
10 9
15
1 9
+
4 4
=
40 36
1
+
4
=
10 9