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분수: 분모가 다른 덧셈5분수7

1
5 7
+
1 4
=
27 28
2
1 4
+
4 9
=
25 36
3
4 9
+
5 6
=
23 18
4
6 4
+
1 5
=
34 20
6
+
1
=
17 10
5
1 5
+
3 4
=
19 20
6
4 3
+
2 5
=
26 15
7
2 5
+
1 4
=
13 20
8
1 7
+
5 5
=
40 35
1
+
5
=
8 7
9
4 5
+
9 2
=
53 10
10
9 2
+
6 6
=
33 6
9
+
6
=
11 2
11
6 6
+
5 7
=
72 42
6
+
5
=
12 7
12
5 7
+
2 9
=
59 63
13
2 9
+
3 4
=
35 36
14
3 4
+
4 6
=
17 12
15
4 6
+
9 3
=
22 6
4
+
9
=
11 3