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분수: 분모가 다른 덧셈1분수4

1
1 4
+
8 3
=
35 12
2
3 8
+
2 4
=
7 8
3
2 4
+
7 6
=
20 12
2
+
7
=
5 3
4
6 2
+
1 3
=
20 6
6
+
1
=
10 3
5
1 3
+
3 5
=
14 15
6
3 5
+
4 9
=
47 45
7
4 9
+
5 2
=
53 18
8
5 2
+
4 5
=
33 10
9
4 5
+
2 8
=
42 40
4
+
2
=
21 20
10
3 2
+
5 7
=
31 14
11
5 7
+
4 4
=
48 28
5
+
4
=
12 7
12
4 3
+
1 7
=
31 21
13
1 7
+
9 4
=
67 28
14
9 4
+
7 5
=
73 20
15
7 5
+
2 8
=
66 40
7
+
2
=
33 20