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분수: 분모가 다른 덧셈3분수8

1
1 4
+
2 2
=
5 4
2
2 2
+
3 4
=
7 4
3
8 4
+
1 8
=
17 8
4
1 6
+
3 4
=
11 12
5
3 4
+
2 5
=
23 20
6
2 5
+
3 4
=
23 20
7
3 4
+
4 5
=
31 20
8
5 3
+
2 4
=
26 12
5
+
2
=
13 6
9
9 2
+
5 4
=
23 4
10
4 4
+
8 2
=
20 4
4
+
8
=
5
11
8 2
+
7 3
=
38 6
8
+
7
=
19 3
12
3 4
+
1 5
=
19 20
13
1 5
+
9 6
=
51 30
1
+
9
=
17 10
14
6 2
+
1 3
=
20 6
6
+
1
=
10 3
15
1 3
+
5 5
=
20 15
1
+
5
=
4 3