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분수: 분모가 다른 덧셈4분수1

1
1 8
+
5 7
=
47 56
2
7 8
+
1 5
=
43 40
3
1 5
+
8 2
=
42 10
1
+
8
=
21 5
4
8 2
+
1 7
=
58 14
8
+
1
=
29 7
5
5 3
+
1 8
=
43 24
6
8 6
+
2 3
=
12 6
8
+
2
=
2
7
2 3
+
1 9
=
7 9
8
1 9
+
3 3
=
10 9
9
3 3
+
8 7
=
45 21
3
+
8
=
15 7
10
8 7
+
5 4
=
67 28
11
5 4
+
6 3
=
39 12
5
+
6
=
13 4
12
6 3
+
3 2
=
21 6
6
+
3
=
7 2
13
3 2
+
2 7
=
25 14
14
2 7
+
5 5
=
45 35
2
+
5
=
9 7
15
5 5
+
2 3
=
25 15
5
+
2
=
5 3