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분수: 분모가 다른 덧셈4분수0

1
3 4
+
9 3
=
45 12
3
+
9
=
15 4
2
3 9
+
2 4
=
30 36
3
+
2
=
5 6
3
2 4
+
4 8
=
8 8
2
+
4
=
1
4
1 2
+
4 4
=
6 4
1
+
4
=
3 2
5
4 4
+
2 3
=
20 12
4
+
2
=
5 3
6
2 3
+
7 6
=
11 6
7
7 6
+
2 8
=
34 24
7
+
2
=
17 12
8
8 2
+
5 7
=
66 14
8
+
5
=
33 7
9
5 7
+
4 4
=
48 28
5
+
4
=
12 7
10
4 4
+
7 9
=
64 36
4
+
7
=
16 9
11
7 9
+
3 6
=
23 18
12
3 6
+
1 3
=
5 6
13
1 2
+
3 7
=
13 14
14
7 4
+
1 3
=
25 12
15
1 3
+
4 8
=
20 24
1
+
4
=
5 6