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분수: 분모가 다른 덧셈4분수1

1
1 3
+
8 9
=
11 9
2
8 9
+
4 4
=
68 36
8
+
4
=
17 9
3
4 4
+
8 2
=
20 4
4
+
8
=
5
4
8 2
+
2 5
=
44 10
8
+
2
=
22 5
5
1 5
+
4 3
=
23 15
6
4 3
+
5 2
=
23 6
7
5 2
+
3 3
=
21 6
5
+
3
=
7 2
8
3 3
+
8 7
=
45 21
3
+
8
=
15 7
9
8 7
+
3 3
=
45 21
8
+
3
=
15 7
10
1 8
+
8 5
=
69 40
11
5 8
+
6 4
=
17 8
12
6 4
+
1 2
=
8 4
6
+
1
=
2
13
1 2
+
5 4
=
7 4
14
4 9
+
1 7
=
37 63
15
7 3
+
1 7
=
52 21