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분수: 분모가 다른 덧셈7분수3

1
7 3
+
1 6
=
15 6
7
+
1
=
5 2
2
1 6
+
4 3
=
9 6
1
+
4
=
3 2
3
4 3
+
2 5
=
26 15
4
5 9
+
1 5
=
34 45
5
1 5
+
3 4
=
19 20
6
3 4
+
4 9
=
43 36
7
4 9
+
2 2
=
26 18
4
+
2
=
13 9
8
2 2
+
6 3
=
18 6
2
+
6
=
3
9
6 3
+
1 8
=
51 24
6
+
1
=
17 8
10
1 6
+
5 3
=
11 6
11
5 3
+
9 4
=
47 12
12
9 4
+
1 9
=
85 36
13
1 9
+
7 4
=
67 36
14
4 7
+
7 3
=
61 21
15
7 3
+
9 6
=
23 6