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분수: 분모가 다른 덧셈3분수4

1
1 4
+
4 3
=
19 12
2
4 3
+
9 4
=
43 12
3
9 4
+
4 7
=
79 28
4
4 7
+
2 4
=
30 28
4
+
2
=
15 14
5
9 4
+
2 7
=
71 28
6
2 7
+
1 4
=
15 28
7
1 4
+
5 5
=
25 20
1
+
5
=
5 4
8
5 6
+
1 2
=
8 6
5
+
1
=
4 3
9
1 2
+
3 6
=
6 6
1
+
3
=
1
10
3 6
+
1 4
=
9 12
3
+
1
=
3 4
11
1 4
+
5 2
=
11 4
12
5 2
+
8 4
=
18 4
5
+
8
=
9 2
13
8 4
+
3 3
=
36 12
8
+
3
=
3
14
3 3
+
1 5
=
18 15
3
+
1
=
6 5
15
1 5
+
9 8
=
53 40