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분수: 분모가 다른 덧셈4분수5

1
4 5
+
1 4
=
21 20
2
1 4
+
5 6
=
13 12
3
6 5
+
5 3
=
43 15
4
3 5
+
2 4
=
22 20
3
+
2
=
11 10
5
2 4
+
9 8
=
13 8
6
9 8
+
3 4
=
15 8
7
3 4
+
4 8
=
10 8
3
+
4
=
5 4
8
4 8
+
2 3
=
28 24
4
+
2
=
7 6
9
2 3
+
8 9
=
14 9
10
8 9
+
3 3
=
17 9
11
9 3
+
1 2
=
21 6
9
+
1
=
7 2
12
1 2
+
2 9
=
13 18
13
2 9
+
6 5
=
64 45
14
6 5
+
1 9
=
59 45
15
1 9
+
5 4
=
49 36