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분수: 분모가 다른 덧셈1분수3

1
1 3
+
3 4
=
13 12
2
7 4
+
3 2
=
13 4
3
2 2
+
3 5
=
16 10
2
+
3
=
8 5
4
3 5
+
7 2
=
41 10
5
7 2
+
5 8
=
33 8
6
2 8
+
3 5
=
34 40
2
+
3
=
17 20
7
5 7
+
1 4
=
27 28
8
1 4
+
5 3
=
23 12
9
5 3
+
3 2
=
19 6
10
3 2
+
1 4
=
7 4
11
1 4
+
2 6
=
7 12
12
2 6
+
5 2
=
17 6
13
1 4
+
3 6
=
9 12
1
+
3
=
3 4
14
6 3
+
8 2
=
36 6
6
+
8
=
6
15
8 2
+
4 7
=
64 14
8
+
4
=
32 7