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분수: 분모가 다른 덧셈4분수2

1
2 6
+
1 2
=
5 6
2
1 2
+
2 3
=
7 6
3
2 3
+
3 4
=
17 12
4
4 4
+
9 9
=
72 36
4
+
9
=
2
5
1 9
+
7 6
=
23 18
6
1 8
+
4 3
=
35 24
7
3 3
+
1 4
=
15 12
3
+
1
=
5 4
8
1 4
+
9 2
=
19 4
9
9 2
+
4 4
=
22 4
9
+
4
=
11 2
10
1 7
+
7 5
=
54 35
11
7 5
+
4 8
=
76 40
7
+
4
=
19 10
12
8 6
+
1 3
=
10 6
8
+
1
=
5 3
13
1 3
+
7 9
=
10 9
14
7 9
+
1 7
=
58 63
15
1 7
+
2 2
=
16 14
1
+
2
=
8 7