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분수: 분모가 다른 덧셈1분수5

1
5 7
+
1 4
=
27 28
2
4 5
+
1 3
=
17 15
3
1 3
+
4 8
=
20 24
1
+
4
=
5 6
4
4 8
+
1 6
=
16 24
4
+
1
=
2 3
5
1 6
+
8 4
=
26 12
1
+
8
=
13 6
6
2 4
+
6 3
=
30 12
2
+
6
=
5 2
7
6 3
+
4 2
=
24 6
6
+
4
=
4
8
2 5
+
1 4
=
13 20
9
1 4
+
2 3
=
11 12
10
2 3
+
8 5
=
34 15
11
8 5
+
9 2
=
61 10
12
9 2
+
3 3
=
33 6
9
+
3
=
11 2
13
3 4
+
1 6
=
11 12
14
1 6
+
3 9
=
9 18
1
+
3
=
1 2
15
3 9
+
7 5
=
78 45
3
+
7
=
26 15