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분수: 분모가 다른 덧셈2분수8

1
2 8
+
1 5
=
18 40
2
+
1
=
9 20
2
1 5
+
6 4
=
34 20
1
+
6
=
17 10
3
6 4
+
3 9
=
66 36
6
+
3
=
11 6
4
1 2
+
7 4
=
9 4
5
7 4
+
5 6
=
31 12
6
5 6
+
2 8
=
26 24
5
+
2
=
13 12
7
1 2
+
6 9
=
21 18
1
+
6
=
7 6
8
6 9
+
1 7
=
51 63
6
+
1
=
17 21
9
1 7
+
7 5
=
54 35
10
7 5
+
4 6
=
62 30
7
+
4
=
31 15
11
4 6
+
1 2
=
7 6
12
2 4
+
1 3
=
10 12
2
+
1
=
5 6
13
3 7
+
1 2
=
13 14
14
1 2
+
2 4
=
4 4
1
+
2
=
1
15
2 4
+
3 7
=
26 28
2
+
3
=
13 14