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분수: 분모가 다른 덧셈2분수1

1
1 9
+
5 8
=
53 72
2
8 5
+
2 4
=
42 20
8
+
2
=
21 10
3
2 4
+
3 5
=
22 20
2
+
3
=
11 10
4
3 5
+
5 3
=
34 15
5
5 3
+
1 5
=
28 15
6
8 5
+
3 6
=
63 30
8
+
3
=
21 10
7
3 6
+
8 5
=
63 30
3
+
8
=
21 10
8
5 5
+
3 2
=
25 10
5
+
3
=
5 2
9
3 2
+
2 5
=
19 10
10
5 5
+
1 6
=
35 30
5
+
1
=
7 6
11
7 6
+
1 8
=
31 24
12
1 8
+
6 3
=
51 24
1
+
6
=
17 8
13
3 6
+
9 4
=
33 12
3
+
9
=
11 4
14
9 4
+
1 5
=
49 20
15
1 5
+
9 2
=
47 10