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분수: 분모가 다른 덧셈4분수7

1
4 7
+
9 3
=
75 21
4
+
9
=
25 7
2
9 3
+
2 6
=
20 6
9
+
2
=
10 3
3
6 4
+
1 2
=
8 4
6
+
1
=
2
4
1 2
+
3 4
=
5 4
5
3 4
+
6 3
=
33 12
3
+
6
=
11 4
6
6 3
+
7 4
=
45 12
6
+
7
=
15 4
7
7 4
+
8 5
=
67 20
8
6 7
+
1 5
=
37 35
9
1 5
+
2 4
=
14 20
1
+
2
=
7 10
10
5 4
+
1 3
=
19 12
11
3 5
+
1 4
=
17 20
12
1 4
+
6 3
=
27 12
1
+
6
=
9 4
13
6 3
+
2 4
=
30 12
6
+
2
=
5 2
14
2 4
+
5 5
=
30 20
2
+
5
=
3 2
15
5 5
+
4 3
=
35 15
5
+
4
=
7 3