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분수: 분모가 다른 덧셈1분수1

1
1 7
+
4 4
=
32 28
1
+
4
=
8 7
2
4 4
+
2 9
=
44 36
4
+
2
=
11 9
3
2 9
+
4 6
=
16 18
2
+
4
=
8 9
4
4 6
+
6 3
=
16 6
4
+
6
=
8 3
5
6 3
+
5 6
=
17 6
6
5 6
+
3 5
=
43 30
7
3 5
+
4 4
=
32 20
3
+
4
=
8 5
8
4 4
+
7 5
=
48 20
4
+
7
=
12 5
9
5 9
+
1 8
=
49 72
10
1 8
+
7 2
=
29 8
11
7 2
+
3 6
=
24 6
7
+
3
=
4
12
3 6
+
2 3
=
7 6
13
2 6
+
1 3
=
4 6
2
+
1
=
2 3
14
2 3
+
3 6
=
7 6
15
3 6
+
2 5
=
27 30
3
+
2
=
9 10