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분수: 분모가 다른 덧셈1분수9

1
9 6
+
1 4
=
21 12
9
+
1
=
7 4
2
4 3
+
1 7
=
31 21
3
7 6
+
1 9
=
23 18
4
1 9
+
2 2
=
20 18
1
+
2
=
10 9
5
2 2
+
4 5
=
18 10
2
+
4
=
9 5
6
5 4
+
8 2
=
21 4
7
2 9
+
1 7
=
23 63
8
1 7
+
2 3
=
17 21
9
3 8
+
1 5
=
23 40
10
1 5
+
9 9
=
54 45
1
+
9
=
6 5
11
2 9
+
4 5
=
46 45
12
9 5
+
3 3
=
42 15
9
+
3
=
14 5
13
3 3
+
5 8
=
39 24
3
+
5
=
13 8
14
8 4
+
1 8
=
17 8
15
1 8
+
5 4
=
11 8