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분수: 분모가 다른 덧셈6분수1

1
1 7
+
6 3
=
45 21
1
+
6
=
15 7
2
2 3
+
7 5
=
31 15
3
7 5
+
9 3
=
66 15
7
+
9
=
22 5
4
9 3
+
1 5
=
48 15
9
+
1
=
16 5
5
1 5
+
7 3
=
38 15
6
3 5
+
1 8
=
29 40
7
1 7
+
4 4
=
32 28
1
+
4
=
8 7
8
4 4
+
3 5
=
32 20
4
+
3
=
8 5
9
3 5
+
2 8
=
34 40
3
+
2
=
17 20
10
2 8
+
7 2
=
30 8
2
+
7
=
15 4
11
7 2
+
2 3
=
25 6
12
2 3
+
4 2
=
16 6
2
+
4
=
8 3
13
4 2
+
7 4
=
15 4
14
4 5
+
1 8
=
37 40
15
1 8
+
9 3
=
75 24
1
+
9
=
25 8