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분수: 분모가 다른 덧셈1분수4

1
1 4
+
8 2
=
17 4
2
2 8
+
6 3
=
54 24
2
+
6
=
9 4
3
6 3
+
7 7
=
63 21
6
+
7
=
3
4
7 7
+
4 4
=
56 28
7
+
4
=
2
5
2 4
+
7 6
=
20 12
2
+
7
=
5 3
6
7 6
+
2 4
=
20 12
7
+
2
=
5 3
7
1 2
+
5 7
=
17 14
8
5 7
+
1 8
=
47 56
9
1 8
+
6 2
=
25 8
10
6 2
+
7 8
=
31 8
11
7 8
+
2 2
=
15 8
12
2 2
+
9 7
=
32 14
2
+
9
=
16 7
13
9 7
+
5 5
=
80 35
9
+
5
=
16 7
14
5 4
+
1 2
=
7 4
15
1 2
+
4 9
=
17 18