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분수: 분모가 다른 덧셈4분수0

1
4 8
+
3 2
=
16 8
4
+
3
=
2
2
3 2
+
9 5
=
33 10
3
9 5
+
7 7
=
98 35
9
+
7
=
14 5
4
7 7
+
3 4
=
49 28
7
+
3
=
7 4
5
5 4
+
3 5
=
37 20
6
3 5
+
2 9
=
37 45
7
2 9
+
3 3
=
11 9
8
3 3
+
9 2
=
33 6
3
+
9
=
11 2
9
9 2
+
6 6
=
33 6
9
+
6
=
11 2
10
6 2
+
1 3
=
20 6
6
+
1
=
10 3
11
1 3
+
2 8
=
14 24
1
+
2
=
7 12
12
2 8
+
4 9
=
50 72
2
+
4
=
25 36
13
4 9
+
1 8
=
41 72
14
1 8
+
2 4
=
5 8
15
4 2
+
7 4
=
15 4