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분수: 분모가 다른 덧셈4분수3

1
4 8
+
1 4
=
6 8
4
+
1
=
3 4
2
1 4
+
6 3
=
27 12
1
+
6
=
9 4
3
6 3
+
2 2
=
18 6
6
+
2
=
3
4
2 2
+
1 5
=
12 10
2
+
1
=
6 5
5
2 5
+
5 2
=
29 10
6
5 8
+
1 4
=
7 8
7
1 4
+
6 2
=
13 4
8
2 9
+
1 5
=
19 45
9
1 5
+
2 2
=
12 10
1
+
2
=
6 5
10
2 2
+
3 4
=
7 4
11
3 4
+
5 6
=
19 12
12
5 6
+
3 5
=
43 30
13
3 5
+
2 7
=
31 35
14
2 7
+
5 5
=
45 35
2
+
5
=
9 7
15
5 4
+
2 3
=
23 12