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분수: 분모가 다른 덧셈2분수4

1
2 4
+
5 7
=
34 28
2
+
5
=
17 14
2
5 7
+
4 2
=
38 14
5
+
4
=
19 7
3
4 3
+
1 2
=
11 6
4
1 2
+
3 4
=
5 4
5
3 4
+
5 6
=
19 12
6
5 6
+
2 5
=
37 30
7
2 5
+
1 4
=
13 20
8
4 4
+
1 3
=
16 12
4
+
1
=
4 3
9
1 3
+
5 8
=
23 24
10
1 3
+
6 5
=
23 15
11
1 5
+
5 8
=
33 40
12
8 6
+
1 7
=
62 42
8
+
1
=
31 21
13
1 7
+
7 3
=
52 21
14
7 3
+
8 6
=
22 6
7
+
8
=
11 3
15
8 6
+
2 2
=
14 6
8
+
2
=
7 3