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분수: 분모가 다른 덧셈2분수1

1
6 4
+
4 8
=
16 8
6
+
4
=
2
2
8 4
+
4 2
=
16 4
8
+
4
=
4
3
2 3
+
1 5
=
13 15
4
1 5
+
2 3
=
13 15
5
2 3
+
4 2
=
16 6
2
+
4
=
8 3
6
4 2
+
3 3
=
18 6
4
+
3
=
3
7
8 3
+
6 2
=
34 6
8
+
6
=
17 3
8
6 2
+
3 3
=
24 6
6
+
3
=
4
9
5 3
+
2 6
=
12 6
5
+
2
=
2
10
2 6
+
8 5
=
58 30
2
+
8
=
29 15
11
8 5
+
1 2
=
21 10
12
1 2
+
7 8
=
11 8
13
7 8
+
1 4
=
9 8
14
4 5
+
1 4
=
21 20
15
4 9
+
1 7
=
37 63