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분수: 분모가 다른 덧셈3분수3

1
3 3
+
4 2
=
18 6
3
+
4
=
3
2
4 2
+
2 4
=
10 4
4
+
2
=
5 2
3
9 4
+
1 2
=
11 4
4
1 2
+
3 9
=
15 18
1
+
3
=
5 6
5
9 3
+
5 8
=
87 24
9
+
5
=
29 8
6
5 8
+
4 4
=
13 8
7
7 4
+
3 9
=
75 36
7
+
3
=
25 12
8
3 9
+
6 6
=
24 18
3
+
6
=
4 3
9
6 6
+
1 2
=
9 6
6
+
1
=
3 2
10
1 2
+
9 6
=
12 6
1
+
9
=
2
11
9 6
+
4 4
=
30 12
9
+
4
=
5 2
12
4 4
+
5 7
=
48 28
4
+
5
=
12 7
13
5 7
+
7 5
=
74 35
14
5 8
+
1 4
=
7 8
15
1 4
+
2 5
=
13 20