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분수: 분모가 다른 덧셈3분수4

1
3 4
+
8 2
=
19 4
2
1 7
+
2 5
=
19 35
3
2 5
+
3 8
=
31 40
4
3 8
+
4 6
=
25 24
5
4 6
+
1 3
=
6 6
4
+
1
=
1
6
3 6
+
1 7
=
27 42
3
+
1
=
9 14
7
1 7
+
9 4
=
67 28
8
9 4
+
6 3
=
51 12
9
+
6
=
17 4
9
3 4
+
1 6
=
11 12
10
4 9
+
1 4
=
25 36
11
1 4
+
4 3
=
19 12
12
4 3
+
3 7
=
37 21
13
3 7
+
1 5
=
22 35
14
1 5
+
2 4
=
14 20
1
+
2
=
7 10
15
2 4
+
9 9
=
54 36
2
+
9
=
3 2