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분수: 분모가 다른 덧셈2분수5

1
2 5
+
4 2
=
24 10
2
+
4
=
12 5
2
4 2
+
6 7
=
40 14
4
+
6
=
20 7
3
6 7
+
4 5
=
58 35
4
4 5
+
3 4
=
31 20
5
3 4
+
7 3
=
37 12
6
7 3
+
4 2
=
26 6
7
+
4
=
13 3
7
5 4
+
8 3
=
47 12
8
8 3
+
7 7
=
77 21
8
+
7
=
11 3
9
7 7
+
3 4
=
49 28
7
+
3
=
7 4
10
3 4
+
4 7
=
37 28
11
4 7
+
1 5
=
27 35
12
1 5
+
6 6
=
36 30
1
+
6
=
6 5
13
6 6
+
2 2
=
12 6
6
+
2
=
2
14
2 2
+
3 7
=
20 14
2
+
3
=
10 7
15
3 7
+
1 8
=
31 56