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분수: 분모가 다른 덧셈5분수4

1
4 5
+
7 4
=
51 20
2
4 2
+
1 6
=
13 6
3
1 4
+
7 6
=
17 12
4
7 6
+
3 4
=
23 12
5
3 4
+
6 3
=
33 12
3
+
6
=
11 4
6
6 3
+
7 6
=
19 6
7
7 6
+
3 4
=
23 12
8
3 4
+
7 7
=
49 28
3
+
7
=
7 4
9
7 7
+
4 9
=
91 63
7
+
4
=
13 9
10
4 9
+
5 4
=
61 36
11
4 7
+
1 2
=
15 14
12
1 2
+
2 8
=
6 8
1
+
2
=
3 4
13
2 8
+
1 5
=
18 40
2
+
1
=
9 20
14
1 5
+
2 7
=
17 35
15
7 2
+
5 6
=
26 6
7
+
5
=
13 3