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분수: 분모가 다른 덧셈2분수8

1
4 8
+
2 5
=
36 40
4
+
2
=
9 10
2
2 5
+
5 7
=
39 35
3
5 7
+
4 2
=
38 14
5
+
4
=
19 7
4
4 2
+
9 5
=
38 10
4
+
9
=
19 5
5
9 5
+
3 7
=
78 35
6
3 7
+
1 6
=
25 42
7
1 6
+
4 4
=
14 12
1
+
4
=
7 6
8
4 9
+
1 2
=
17 18
9
1 2
+
3 4
=
5 4
10
9 3
+
6 6
=
24 6
9
+
6
=
4
11
4 6
+
1 5
=
26 30
4
+
1
=
13 15
12
1 5
+
3 4
=
19 20
13
3 4
+
6 2
=
15 4
14
6 2
+
2 3
=
22 6
6
+
2
=
11 3
15
2 3
+
6 4
=
26 12
2
+
6
=
13 6