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분수: 분모가 다른 덧셈1분수1

1
1 9
+
7 4
=
67 36
2
7 4
+
5 2
=
17 4
3
5 2
+
4 3
=
23 6
4
4 3
+
2 5
=
26 15
5
2 5
+
1 4
=
13 20
6
1 4
+
7 6
=
17 12
7
7 6
+
2 4
=
20 12
7
+
2
=
5 3
8
2 4
+
1 5
=
14 20
2
+
1
=
7 10
9
1 5
+
5 3
=
28 15
10
5 3
+
1 8
=
43 24
11
1 8
+
8 3
=
67 24
12
4 8
+
1 5
=
28 40
4
+
1
=
7 10
13
1 5
+
8 6
=
46 30
1
+
8
=
23 15
14
8 6
+
3 2
=
17 6
15
5 2
+
6 3
=
27 6
5
+
6
=
9 2