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분수: 분모가 다른 덧셈1분수4

1
1 4
+
2 5
=
13 20
2
5 5
+
1 3
=
20 15
5
+
1
=
4 3
3
1 3
+
7 5
=
26 15
4
7 5
+
4 2
=
34 10
7
+
4
=
17 5
5
2 5
+
1 4
=
13 20
6
1 4
+
7 5
=
33 20
7
5 5
+
3 2
=
25 10
5
+
3
=
5 2
8
3 2
+
8 6
=
17 6
9
8 6
+
6 3
=
20 6
8
+
6
=
10 3
10
6 3
+
8 4
=
48 12
6
+
8
=
4
11
8 4
+
1 6
=
26 12
8
+
1
=
13 6
12
1 4
+
4 5
=
21 20
13
4 5
+
8 6
=
64 30
4
+
8
=
32 15
14
6 6
+
1 5
=
36 30
6
+
1
=
6 5
15
5 4
+
1 3
=
19 12