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분수: 분모가 다른 덧셈4분수4

1
1 4
+
7 3
=
31 12
2
7 3
+
2 5
=
41 15
3
2 7
+
1 6
=
19 42
4
1 6
+
3 7
=
25 42
5
3 7
+
8 2
=
62 14
3
+
8
=
31 7
6
8 2
+
5 5
=
50 10
8
+
5
=
5
7
5 4
+
1 3
=
19 12
8
1 3
+
8 6
=
10 6
1
+
8
=
5 3
9
3 6
+
1 5
=
21 30
3
+
1
=
7 10
10
1 5
+
2 3
=
13 15
11
2 3
+
1 8
=
19 24
12
8 2
+
1 7
=
58 14
8
+
1
=
29 7
13
7 3
+
1 9
=
22 9
14
9 4
+
1 7
=
67 28
15
1 7
+
3 2
=
23 14