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분수: 분모가 다른 덧셈3분수4

1
3 4
+
1 3
=
13 12
2
3 2
+
1 7
=
23 14
3
1 7
+
4 3
=
31 21
4
3 8
+
1 3
=
17 24
5
2 3
+
4 6
=
8 6
2
+
4
=
4 3
6
4 6
+
2 7
=
40 42
4
+
2
=
20 21
7
2 7
+
3 2
=
25 14
8
3 2
+
4 3
=
17 6
9
3 5
+
1 2
=
11 10
10
1 2
+
4 5
=
13 10
11
4 5
+
5 4
=
41 20
12
5 4
+
7 2
=
19 4
13
6 2
+
5 4
=
17 4
14
5 4
+
2 3
=
23 12
15
2 3
+
5 5
=
25 15
2
+
5
=
5 3