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분수: 분모가 다른 덧셈2분수4

1
2 4
+
4 2
=
10 4
2
+
4
=
5 2
2
4 2
+
1 4
=
9 4
3
1 4
+
7 8
=
9 8
4
7 8
+
3 9
=
87 72
7
+
3
=
29 24
5
3 9
+
5 3
=
18 9
3
+
5
=
2
6
1 4
+
2 2
=
5 4
7
2 2
+
4 3
=
14 6
2
+
4
=
7 3
8
3 9
+
1 5
=
24 45
3
+
1
=
8 15
9
1 5
+
3 4
=
19 20
10
3 4
+
5 5
=
35 20
3
+
5
=
7 4
11
5 3
+
1 8
=
43 24
12
1 8
+
3 2
=
13 8
13
2 5
+
1 9
=
23 45
14
9 4
+
1 2
=
11 4
15
1 2
+
6 3
=
15 6
1
+
6
=
5 2