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분수: 분모가 다른 덧셈3분수4

1
4 3
+
7 7
=
49 21
4
+
7
=
7 3
2
7 7
+
4 8
=
84 56
7
+
4
=
3 2
3
4 8
+
1 3
=
20 24
4
+
1
=
5 6
4
1 3
+
6 5
=
23 15
5
6 5
+
4 8
=
68 40
6
+
4
=
17 10
6
4 8
+
5 3
=
52 24
4
+
5
=
13 6
7
5 3
+
2 4
=
26 12
5
+
2
=
13 6
8
2 4
+
5 6
=
16 12
2
+
5
=
4 3
9
6 3
+
1 4
=
27 12
6
+
1
=
9 4
10
2 4
+
6 9
=
42 36
2
+
6
=
7 6
11
6 9
+
2 5
=
48 45
6
+
2
=
16 15
12
2 5
+
6 3
=
36 15
2
+
6
=
12 5
13
1 6
+
2 5
=
17 30
14
2 5
+
5 4
=
33 20
15
5 4
+
1 3
=
19 12