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분수: 분모가 다른 덧셈1분수4

1
1 4
+
8 7
=
39 28
2
8 7
+
1 8
=
71 56
3
8 6
+
1 3
=
10 6
8
+
1
=
5 3
4
1 3
+
8 4
=
28 12
1
+
8
=
7 3
5
8 4
+
2 7
=
64 28
8
+
2
=
16 7
6
2 7
+
4 9
=
46 63
7
4 9
+
1 2
=
17 18
8
1 2
+
3 8
=
7 8
9
3 8
+
9 3
=
81 24
3
+
9
=
27 8
10
9 3
+
7 4
=
57 12
9
+
7
=
19 4
11
8 4
+
2 9
=
80 36
8
+
2
=
20 9
12
2 9
+
6 2
=
58 18
2
+
6
=
29 9
13
5 2
+
3 9
=
51 18
5
+
3
=
17 6
14
3 9
+
5 2
=
51 18
3
+
5
=
17 6
15
2 2
+
1 5
=
12 10
2
+
1
=
6 5