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분수: 분모가 다른 덧셈9분수5

1
1 5
+
7 7
=
42 35
1
+
7
=
6 5
2
7 7
+
2 2
=
28 14
7
+
2
=
2
3
2 5
+
1 3
=
11 15
4
1 3
+
4 2
=
14 6
1
+
4
=
7 3
5
4 2
+
2 9
=
40 18
4
+
2
=
20 9
6
2 9
+
1 3
=
5 9
7
1 3
+
2 6
=
4 6
1
+
2
=
2 3
8
2 6
+
3 7
=
32 42
2
+
3
=
16 21
9
7 6
+
1 8
=
31 24
10
1 4
+
6 8
=
8 8
1
+
6
=
1
11
6 8
+
1 5
=
38 40
6
+
1
=
19 20
12
1 5
+
4 4
=
24 20
1
+
4
=
6 5
13
4 4
+
3 3
=
24 12
4
+
3
=
2
14
1 8
+
7 3
=
59 24
15
7 3
+
4 2
=
26 6
7
+
4
=
13 3