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분수: 분모가 다른 덧셈2분수3

1
5 3
+
3 7
=
44 21
2
7 3
+
2 6
=
16 6
7
+
2
=
8 3
3
2 6
+
1 5
=
16 30
2
+
1
=
8 15
4
1 5
+
5 4
=
29 20
5
5 4
+
2 9
=
53 36
6
2 9
+
4 8
=
52 72
2
+
4
=
13 18
7
4 8
+
3 5
=
44 40
4
+
3
=
11 10
8
3 5
+
2 8
=
34 40
3
+
2
=
17 20
9
8 2
+
6 3
=
36 6
8
+
6
=
6
10
6 3
+
3 2
=
21 6
6
+
3
=
7 2
11
3 2
+
4 3
=
17 6
12
4 3
+
3 9
=
15 9
4
+
3
=
5 3
13
3 9
+
2 2
=
24 18
3
+
2
=
4 3
14
2 2
+
1 6
=
7 6
15
1 6
+
3 3
=
7 6