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분수: 분모가 다른 덧셈1분수1

1
1 3
+
3 4
=
13 12
2
4 7
+
1 9
=
43 63
3
1 9
+
4 8
=
44 72
1
+
4
=
11 18
4
4 8
+
2 4
=
8 8
4
+
2
=
1
5
2 4
+
3 2
=
8 4
2
+
3
=
2
6
3 3
+
1 4
=
15 12
3
+
1
=
5 4
7
1 2
+
4 6
=
7 6
8
4 6
+
7 4
=
29 12
9
4 3
+
2 7
=
34 21
10
1 4
+
2 6
=
7 12
11
2 6
+
6 4
=
22 12
2
+
6
=
11 6
12
6 4
+
8 7
=
74 28
6
+
8
=
37 14
13
8 7
+
3 5
=
61 35
14
3 5
+
2 3
=
19 15
15
2 3
+
7 5
=
31 15