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분수: 분모가 다른 덧셈4분수7

1
7 5
+
1 8
=
61 40
2
1 8
+
2 3
=
19 24
3
2 3
+
5 2
=
19 6
4
5 6
+
1 5
=
31 30
5
5 7
+
1 6
=
37 42
6
1 6
+
7 4
=
23 12
7
7 4
+
5 7
=
69 28
8
5 7
+
1 2
=
17 14
9
1 2
+
2 3
=
7 6
10
2 3
+
4 2
=
16 6
2
+
4
=
8 3
11
2 5
+
1 6
=
17 30
12
1 6
+
7 2
=
22 6
1
+
7
=
11 3
13
1 7
+
3 2
=
23 14
14
2 3
+
1 5
=
13 15
15
2 5
+
5 4
=
33 20