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분수: 분모가 다른 덧셈3분수3

1
3 3
+
1 4
=
15 12
3
+
1
=
5 4
2
1 4
+
2 9
=
17 36
3
2 9
+
1 5
=
19 45
4
1 5
+
5 2
=
27 10
5
5 2
+
3 6
=
18 6
5
+
3
=
3
6
3 6
+
6 2
=
21 6
3
+
6
=
7 2
7
3 2
+
6 3
=
21 6
3
+
6
=
7 2
8
6 3
+
8 4
=
48 12
6
+
8
=
4
9
4 2
+
1 3
=
14 6
4
+
1
=
7 3
10
1 3
+
8 4
=
28 12
1
+
8
=
7 3
11
8 4
+
5 5
=
60 20
8
+
5
=
3
12
5 5
+
7 3
=
50 15
5
+
7
=
10 3
13
7 3
+
5 6
=
19 6
14
5 6
+
8 2
=
29 6
15
6 2
+
4 4
=
16 4
6
+
4
=
4