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분수: 분모가 다른 덧셈3분수9

1
9 7
+
1 3
=
34 21
2
1 3
+
3 4
=
13 12
3
3 4
+
8 2
=
19 4
4
8 2
+
6 3
=
36 6
8
+
6
=
6
5
6 3
+
1 2
=
15 6
6
+
1
=
5 2
6
1 2
+
2 9
=
13 18
7
2 9
+
4 8
=
52 72
2
+
4
=
13 18
8
4 8
+
1 9
=
44 72
4
+
1
=
11 18
9
9 7
+
1 3
=
34 21
10
1 3
+
7 5
=
26 15
11
7 5
+
6 8
=
86 40
7
+
6
=
43 20
12
6 8
+
2 7
=
58 56
6
+
2
=
29 28
13
2 7
+
1 3
=
13 21
14
6 3
+
3 6
=
15 6
6
+
3
=
5 2
15
3 6
+
6 3
=
15 6
3
+
6
=
5 2