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분수: 분모가 다른 덧셈2분수1

1
1 8
+
5 9
=
49 72
2
5 9
+
4 4
=
56 36
5
+
4
=
14 9
3
4 4
+
1 3
=
16 12
4
+
1
=
4 3
4
3 9
+
1 6
=
9 18
3
+
1
=
1 2
5
1 6
+
3 3
=
7 6
6
3 3
+
5 2
=
21 6
3
+
5
=
7 2
7
3 2
+
1 7
=
23 14
8
1 7
+
3 5
=
26 35
9
3 5
+
2 4
=
22 20
3
+
2
=
11 10
10
1 4
+
9 3
=
39 12
1
+
9
=
13 4
11
3 3
+
1 2
=
9 6
3
+
1
=
3 2
12
1 8
+
5 2
=
21 8
13
1 2
+
3 4
=
5 4
14
4 4
+
9 5
=
56 20
4
+
9
=
14 5
15
9 5
+
2 6
=
64 30
9
+
2
=
32 15