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분수: 분모가 다른 덧셈4분수7

1
1 7
+
4 3
=
31 21
2
9 3
+
1 6
=
19 6
3
1 6
+
3 7
=
25 42
4
3 7
+
1 3
=
16 21
5
1 3
+
2 2
=
8 6
1
+
2
=
4 3
6
2 2
+
3 7
=
20 14
2
+
3
=
10 7
7
2 7
+
8 2
=
60 14
2
+
8
=
30 7
8
8 2
+
1 3
=
26 6
8
+
1
=
13 3
9
1 3
+
3 4
=
13 12
10
3 4
+
5 7
=
41 28
11
5 7
+
9 2
=
73 14
12
2 9
+
5 3
=
17 9
13
5 3
+
7 2
=
31 6
14
7 2
+
2 3
=
25 6
15
2 3
+
6 2
=
22 6
2
+
6
=
11 3