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분수: 분모가 다른 덧셈1분수7

1
1 7
+
8 6
=
62 42
1
+
8
=
31 21
2
8 6
+
2 3
=
12 6
8
+
2
=
2
3
2 3
+
4 9
=
10 9
4
4 9
+
7 3
=
25 9
5
7 3
+
6 6
=
20 6
7
+
6
=
10 3
6
8 6
+
4 5
=
64 30
8
+
4
=
32 15
7
4 5
+
5 3
=
37 15
8
2 3
+
7 9
=
13 9
9
9 4
+
2 5
=
53 20
10
2 5
+
6 6
=
42 30
2
+
6
=
7 5
11
1 3
+
3 4
=
13 12
12
3 4
+
1 9
=
31 36
13
1 9
+
5 4
=
49 36
14
4 5
+
1 3
=
17 15
15
1 3
+
8 9
=
11 9