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분수: 분모가 다른 덧셈5분수7

1
5 7
+
4 5
=
53 35
2
1 2
+
2 3
=
7 6
3
2 3
+
5 5
=
25 15
2
+
5
=
5 3
4
5 5
+
3 7
=
50 35
5
+
3
=
10 7
5
7 3
+
9 4
=
55 12
6
9 4
+
3 2
=
15 4
7
3 2
+
5 8
=
17 8
8
8 5
+
3 9
=
87 45
8
+
3
=
29 15
9
2 4
+
1 7
=
18 28
2
+
1
=
9 14
10
1 7
+
8 2
=
58 14
1
+
8
=
29 7
11
8 2
+
6 3
=
36 6
8
+
6
=
6
12
6 3
+
1 7
=
45 21
6
+
1
=
15 7
13
1 7
+
4 8
=
36 56
1
+
4
=
9 14
14
4 8
+
8 4
=
20 8
4
+
8
=
5 2
15
8 4
+
5 5
=
60 20
8
+
5
=
3