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분수: 분모가 다른 덧셈2분수3

1
4 3
+
6 7
=
46 21
2
1 3
+
2 7
=
13 21
3
2 7
+
4 2
=
32 14
2
+
4
=
16 7
4
4 2
+
9 4
=
17 4
5
4 5
+
5 7
=
53 35
6
5 7
+
3 4
=
41 28
7
3 4
+
6 2
=
15 4
8
6 2
+
7 3
=
32 6
6
+
7
=
16 3
9
7 3
+
5 7
=
64 21
10
5 7
+
2 4
=
34 28
5
+
2
=
17 14
11
5 5
+
9 7
=
80 35
5
+
9
=
16 7
12
9 7
+
4 8
=
100 56
9
+
4
=
25 14
13
4 8
+
3 4
=
10 8
4
+
3
=
5 4
14
1 7
+
2 5
=
19 35
15
5 3
+
1 2
=
13 6