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분수: 분모가 다른 덧셈2분수3

1
1 8
+
4 5
=
37 40
2
4 5
+
5 2
=
33 10
3
5 2
+
2 4
=
12 4
5
+
2
=
3
4
4 4
+
1 6
=
14 12
4
+
1
=
7 6
5
1 6
+
2 3
=
5 6
6
8 4
+
9 8
=
25 8
7
9 8
+
3 2
=
21 8
8
2 3
+
6 2
=
22 6
2
+
6
=
11 3
9
2 6
+
6 4
=
22 12
2
+
6
=
11 6
10
1 4
+
9 6
=
21 12
1
+
9
=
7 4
11
2 6
+
3 5
=
28 30
2
+
3
=
14 15
12
3 5
+
2 3
=
19 15
13
3 2
+
9 4
=
15 4
14
4 9
+
3 3
=
13 9
15
3 3
+
4 6
=
10 6
3
+
4
=
5 3