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분수: 분모가 다른 덧셈5분수7

1
5 7
+
6 3
=
57 21
5
+
6
=
19 7
2
6 3
+
3 8
=
57 24
6
+
3
=
19 8
3
8 5
+
1 9
=
77 45
4
1 9
+
2 5
=
23 45
5
8 5
+
5 4
=
57 20
6
5 4
+
2 5
=
33 20
7
2 5
+
4 4
=
28 20
2
+
4
=
7 5
8
4 4
+
2 8
=
10 8
4
+
2
=
5 4
9
2 8
+
7 5
=
66 40
2
+
7
=
33 20
10
5 3
+
1 5
=
28 15
11
1 5
+
3 4
=
19 20
12
4 7
+
1 6
=
31 42
13
1 6
+
8 3
=
17 6
14
8 3
+
3 5
=
49 15
15
3 5
+
9 3
=
54 15
3
+
9
=
18 5