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분수: 분모가 다른 덧셈2분수7

1
2 7
+
4 5
=
38 35
2
9 5
+
5 7
=
88 35
3
5 7
+
4 2
=
38 14
5
+
4
=
19 7
4
4 2
+
1 5
=
22 10
4
+
1
=
11 5
5
1 5
+
3 4
=
19 20
6
4 3
+
7 5
=
41 15
7
7 5
+
5 3
=
46 15
8
5 3
+
1 6
=
11 6
9
6 4
+
1 2
=
8 4
6
+
1
=
2
10
1 2
+
2 7
=
11 14
11
2 7
+
6 5
=
52 35
12
1 5
+
2 8
=
18 40
1
+
2
=
9 20
13
5 8
+
1 4
=
7 8
14
1 4
+
3 5
=
17 20
15
5 2
+
1 6
=
16 6
5
+
1
=
8 3