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분수: 분모가 다른 덧셈2분수7

1
2 7
+
4 3
=
34 21
2
4 3
+
7 8
=
53 24
3
7 8
+
2 2
=
15 8
4
2 2
+
9 4
=
13 4
5
4 7
+
1 9
=
43 63
6
1 9
+
8 5
=
77 45
7
8 5
+
5 4
=
57 20
8
5 4
+
3 5
=
37 20
9
5 2
+
9 4
=
19 4
10
9 4
+
6 5
=
69 20
11
5 2
+
1 5
=
27 10
12
1 5
+
4 4
=
24 20
1
+
4
=
6 5
13
4 4
+
7 8
=
15 8
14
7 8
+
4 9
=
95 72
15
3 9
+
4 3
=
15 9
3
+
4
=
5 3