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분수: 분모가 다른 덧셈2분수4

1
4 2
+
2 8
=
18 8
4
+
2
=
9 4
2
8 2
+
3 9
=
78 18
8
+
3
=
13 3
3
9 7
+
1 5
=
52 35
4
1 5
+
8 6
=
46 30
1
+
8
=
23 15
5
1 8
+
4 5
=
37 40
6
4 5
+
2 2
=
18 10
4
+
2
=
9 5
7
2 2
+
4 6
=
10 6
2
+
4
=
5 3
8
4 6
+
2 2
=
10 6
4
+
2
=
5 3
9
6 2
+
2 7
=
46 14
6
+
2
=
23 7
10
2 2
+
6 3
=
18 6
2
+
6
=
3
11
6 3
+
1 5
=
33 15
6
+
1
=
11 5
12
7 4
+
2 8
=
16 8
7
+
2
=
2
13
2 8
+
6 2
=
26 8
2
+
6
=
13 4
14
9 2
+
8 3
=
43 6
15
3 6
+
1 4
=
9 12
3
+
1
=
3 4