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분수: 분모가 다른 덧셈4분수8

1
4 8
+
7 2
=
32 8
4
+
7
=
4
2
7 2
+
3 7
=
55 14
3
3 7
+
5 3
=
44 21
4
5 3
+
7 4
=
41 12
5
7 4
+
9 9
=
99 36
7
+
9
=
11 4
6
9 9
+
1 4
=
45 36
9
+
1
=
5 4
7
1 5
+
3 8
=
23 40
8
3 8
+
4 4
=
11 8
9
4 2
+
1 5
=
22 10
4
+
1
=
11 5
10
5 8
+
1 5
=
33 40
11
5 7
+
1 3
=
22 21
12
1 3
+
6 4
=
22 12
1
+
6
=
11 6
13
6 4
+
9 8
=
21 8
14
9 8
+
3 7
=
87 56
15
3 7
+
5 3
=
44 21