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분수: 분모가 다른 덧셈3분수7

1
7 3
+
2 7
=
55 21
2
2 7
+
3 8
=
37 56
3
3 8
+
9 4
=
21 8
4
9 4
+
1 9
=
85 36
5
5 9
+
2 6
=
16 18
5
+
2
=
8 9
6
2 6
+
4 9
=
14 18
2
+
4
=
7 9
7
4 9
+
1 2
=
17 18
8
1 2
+
5 7
=
17 14
9
5 7
+
3 4
=
41 28
10
4 7
+
1 2
=
15 14
11
7 2
+
8 4
=
22 4
7
+
8
=
11 2
12
8 4
+
2 8
=
18 8
8
+
2
=
9 4
13
8 8
+
1 9
=
80 72
8
+
1
=
10 9
14
1 9
+
2 2
=
20 18
1
+
2
=
10 9
15
2 2
+
3 5
=
16 10
2
+
3
=
8 5