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분수: 분모가 다른 덧셈8분수7

1
8 7
+
3 4
=
53 28
2
1 4
+
7 2
=
15 4
3
7 2
+
9 3
=
39 6
7
+
9
=
13 2
4
9 3
+
1 5
=
48 15
9
+
1
=
16 5
5
1 5
+
7 2
=
37 10
6
1 4
+
3 2
=
7 4
7
3 2
+
6 9
=
39 18
3
+
6
=
13 6
8
6 9
+
3 7
=
69 63
6
+
3
=
23 21
9
3 7
+
4 2
=
34 14
3
+
4
=
17 7
10
4 2
+
5 9
=
46 18
4
+
5
=
23 9
11
5 9
+
4 4
=
56 36
5
+
4
=
14 9
12
4 6
+
1 3
=
6 6
4
+
1
=
1
13
1 3
+
8 4
=
28 12
1
+
8
=
7 3
14
1 3
+
6 4
=
22 12
1
+
6
=
11 6
15
4 6
+
8 2
=
28 6
4
+
8
=
14 3