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분수: 분모가 다른 덧셈5분수4

1
8 4
+
7 7
=
84 28
8
+
7
=
3
2
7 7
+
5 4
=
63 28
7
+
5
=
9 4
3
4 4
+
1 8
=
9 8
4
1 8
+
4 4
=
9 8
5
4 4
+
9 3
=
48 12
4
+
9
=
4
6
9 3
+
3 8
=
81 24
9
+
3
=
27 8
7
8 3
+
4 9
=
28 9
8
4 9
+
5 3
=
19 9
9
5 3
+
8 5
=
49 15
10
8 5
+
4 6
=
68 30
8
+
4
=
34 15
11
4 6
+
1 5
=
26 30
4
+
1
=
13 15
12
1 5
+
4 4
=
24 20
1
+
4
=
6 5
13
4 4
+
6 6
=
24 12
4
+
6
=
2
14
1 6
+
3 4
=
11 12
15
4 9
+
1 7
=
37 63