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분수: 분모가 다른 덧셈3분수3

1
3 3
+
5 5
=
30 15
3
+
5
=
2
2
7 5
+
5 4
=
53 20
3
5 4
+
7 5
=
53 20
4
7 5
+
1 2
=
19 10
5
4 2
+
7 3
=
26 6
4
+
7
=
13 3
6
7 3
+
1 5
=
38 15
7
1 5
+
5 7
=
32 35
8
7 5
+
3 9
=
78 45
7
+
3
=
26 15
9
3 9
+
5 4
=
57 36
3
+
5
=
19 12
10
5 4
+
6 2
=
17 4
11
6 2
+
4 6
=
22 6
6
+
4
=
11 3
12
4 6
+
3 3
=
10 6
4
+
3
=
5 3
13
3 3
+
4 6
=
10 6
3
+
4
=
5 3
14
4 6
+
2 4
=
14 12
4
+
2
=
7 6
15
2 4
+
7 5
=
38 20
2
+
7
=
19 10