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분수: 분모가 다른 덧셈5분수7

1
5 7
+
4 3
=
43 21
2
4 3
+
8 2
=
32 6
4
+
8
=
16 3
3
8 2
+
1 5
=
42 10
8
+
1
=
21 5
4
1 5
+
3 9
=
24 45
1
+
3
=
8 15
5
3 9
+
1 4
=
21 36
3
+
1
=
7 12
6
1 4
+
7 9
=
37 36
7
7 9
+
1 8
=
65 72
8
1 8
+
5 2
=
21 8
9
2 7
+
1 3
=
13 21
10
1 3
+
3 9
=
6 9
1
+
3
=
2 3
11
3 9
+
1 7
=
30 63
3
+
1
=
10 21
12
7 6
+
1 3
=
9 6
7
+
1
=
3 2
13
7 5
+
5 4
=
53 20
14
5 4
+
3 7
=
47 28
15
3 7
+
2 3
=
23 21