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분수: 분모가 다른 덧셈1분수3

1
1 3
+
5 4
=
19 12
2
5 4
+
2 2
=
9 4
3
2 2
+
1 8
=
9 8
4
1 5
+
2 8
=
18 40
1
+
2
=
9 20
5
2 8
+
1 3
=
14 24
2
+
1
=
7 12
6
3 9
+
4 4
=
48 36
3
+
4
=
4 3
7
4 4
+
6 7
=
52 28
4
+
6
=
13 7
8
6 7
+
2 8
=
62 56
6
+
2
=
31 28
9
8 3
+
1 5
=
43 15
10
1 5
+
8 3
=
43 15
11
8 3
+
9 4
=
59 12
12
9 4
+
3 7
=
75 28
13
5 6
+
1 5
=
31 30
14
1 5
+
2 2
=
12 10
1
+
2
=
6 5
15
2 2
+
4 3
=
14 6
2
+
4
=
7 3