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분수: 분모가 다른 덧셈4분수2

1
4 2
+
5 4
=
13 4
2
4 4
+
6 9
=
60 36
4
+
6
=
5 3
3
6 9
+
2 5
=
48 45
6
+
2
=
16 15
4
5 2
+
1 3
=
17 6
5
1 3
+
4 2
=
14 6
1
+
4
=
7 3
6
4 2
+
7 5
=
34 10
4
+
7
=
17 5
7
7 5
+
1 4
=
33 20
8
1 4
+
2 3
=
11 12
9
1 3
+
8 6
=
10 6
1
+
8
=
5 3
10
6 6
+
1 8
=
27 24
6
+
1
=
9 8
11
1 8
+
2 3
=
19 24
12
2 3
+
3 5
=
19 15
13
3 5
+
2 9
=
37 45
14
9 6
+
1 4
=
21 12
9
+
1
=
7 4
15
1 2
+
7 4
=
9 4