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분수: 분모가 다른 덧셈2분수2

1
2 5
+
1 2
=
9 10
2
1 2
+
3 3
=
9 6
1
+
3
=
3 2
3
3 3
+
5 7
=
36 21
3
+
5
=
12 7
4
9 7
+
3 5
=
66 35
5
3 2
+
1 4
=
7 4
6
1 4
+
4 5
=
21 20
7
4 5
+
7 3
=
47 15
8
3 4
+
1 6
=
11 12
9
1 4
+
4 7
=
23 28
10
4 7
+
1 3
=
19 21
11
1 3
+
4 8
=
20 24
1
+
4
=
5 6
12
4 8
+
2 5
=
36 40
4
+
2
=
9 10
13
1 5
+
6 3
=
33 15
1
+
6
=
11 5
14
6 3
+
1 4
=
27 12
6
+
1
=
9 4
15
1 4
+
2 8
=
4 8
1
+
2
=
1 2