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분수: 분모가 다른 덧셈6분수7

1
7 3
+
1 4
=
31 12
2
4 4
+
1 5
=
24 20
4
+
1
=
6 5
3
1 5
+
4 3
=
23 15
4
4 3
+
7 4
=
37 12
5
7 4
+
4 3
=
37 12
6
4 3
+
2 5
=
26 15
7
5 2
+
3 3
=
21 6
5
+
3
=
7 2
8
3 3
+
4 5
=
27 15
3
+
4
=
9 5
9
4 5
+
5 7
=
53 35
10
5 7
+
2 9
=
59 63
11
2 9
+
5 7
=
59 63
12
5 7
+
3 3
=
36 21
5
+
3
=
12 7
13
1 5
+
2 6
=
16 30
1
+
2
=
8 15
14
2 6
+
4 5
=
34 30
2
+
4
=
17 15
15
4 5
+
5 2
=
33 10