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분수: 분모가 다른 덧셈2분수6

1
2 6
+
6 2
=
20 6
2
+
6
=
10 3
2
7 2
+
5 5
=
45 10
7
+
5
=
9 2
3
5 5
+
1 9
=
50 45
5
+
1
=
10 9
4
1 9
+
8 8
=
80 72
1
+
8
=
10 9
5
8 8
+
4 2
=
24 8
8
+
4
=
3
6
4 2
+
2 4
=
10 4
4
+
2
=
5 2
7
2 4
+
6 7
=
38 28
2
+
6
=
19 14
8
6 7
+
3 2
=
33 14
9
3 2
+
6 3
=
21 6
3
+
6
=
7 2
10
3 3
+
7 9
=
16 9
11
7 9
+
5 6
=
29 18
12
5 6
+
1 5
=
31 30
13
1 5
+
2 9
=
19 45
14
2 3
+
4 6
=
8 6
2
+
4
=
4 3
15
6 4
+
1 6
=
20 12
6
+
1
=
5 3