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분수: 분모가 다른 덧셈5분수3

1
3 7
+
1 3
=
16 21
2
3 3
+
4 2
=
18 6
3
+
4
=
3
3
4 2
+
1 8
=
17 8
4
2 4
+
1 7
=
18 28
2
+
1
=
9 14
5
1 7
+
9 4
=
67 28
6
9 4
+
4 3
=
43 12
7
3 3
+
8 9
=
17 9
8
8 9
+
2 6
=
22 18
8
+
2
=
11 9
9
2 6
+
3 8
=
17 24
10
8 3
+
3 2
=
25 6
11
3 2
+
1 4
=
7 4
12
1 4
+
6 5
=
29 20
13
6 5
+
5 2
=
37 10
14
5 2
+
4 6
=
19 6
15
4 6
+
5 3
=
14 6
4
+
5
=
7 3