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분수: 분모가 다른 덧셈2분수1

1
1 7
+
6 3
=
45 21
1
+
6
=
15 7
2
6 3
+
1 2
=
15 6
6
+
1
=
5 2
3
1 2
+
8 6
=
11 6
4
8 6
+
6 2
=
26 6
8
+
6
=
13 3
5
1 6
+
9 4
=
29 12
6
9 4
+
8 7
=
95 28
7
8 7
+
1 3
=
31 21
8
1 5
+
4 7
=
27 35
9
7 4
+
8 9
=
95 36
10
8 9
+
4 3
=
20 9
11
4 3
+
9 2
=
35 6
12
2 9
+
9 4
=
89 36
13
9 4
+
7 9
=
109 36
14
7 9
+
5 7
=
94 63
15
5 7
+
2 4
=
34 28
5
+
2
=
17 14