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분수: 분모가 다른 덧셈2분수9

1
2 5
+
1 4
=
13 20
2
1 4
+
6 3
=
27 12
1
+
6
=
9 4
3
6 3
+
4 2
=
24 6
6
+
4
=
4
4
2 8
+
1 4
=
4 8
2
+
1
=
1 2
5
1 3
+
3 2
=
11 6
6
3 2
+
8 7
=
37 14
7
8 7
+
6 3
=
66 21
8
+
6
=
22 7
8
6 3
+
1 2
=
15 6
6
+
1
=
5 2
9
1 2
+
4 8
=
8 8
1
+
4
=
1
10
4 8
+
9 2
=
40 8
4
+
9
=
5
11
9 2
+
6 3
=
39 6
9
+
6
=
13 2
12
6 3
+
4 8
=
60 24
6
+
4
=
5 2
13
4 8
+
1 9
=
44 72
4
+
1
=
11 18
14
1 9
+
3 4
=
31 36
15
3 4
+
9 2
=
21 4