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분수: 분모가 다른 덧셈2분수1

1
9 4
+
6 9
=
105 36
9
+
6
=
35 12
2
9 4
+
1 5
=
49 20
3
1 5
+
9 3
=
48 15
1
+
9
=
16 5
4
9 3
+
5 7
=
78 21
9
+
5
=
26 7
5
5 7
+
7 6
=
79 42
6
7 6
+
8 3
=
23 6
7
8 3
+
2 4
=
38 12
8
+
2
=
19 6
8
4 2
+
2 6
=
14 6
4
+
2
=
7 3
9
2 6
+
3 9
=
12 18
2
+
3
=
2 3
10
3 9
+
1 6
=
9 18
3
+
1
=
1 2
11
1 6
+
3 5
=
23 30
12
5 3
+
3 7
=
44 21
13
3 7
+
4 8
=
52 56
3
+
4
=
13 14
14
4 8
+
1 2
=
8 8
4
+
1
=
1
15
1 2
+
3 5
=
11 10