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분수: 분모가 다른 덧셈2분수4

1
4 3
+
1 5
=
23 15
2
1 3
+
6 4
=
22 12
1
+
6
=
11 6
3
6 4
+
4 3
=
34 12
6
+
4
=
17 6
4
3 9
+
7 3
=
24 9
3
+
7
=
8 3
5
7 3
+
3 9
=
24 9
7
+
3
=
8 3
6
9 3
+
1 4
=
39 12
9
+
1
=
13 4
7
1 4
+
3 6
=
9 12
1
+
3
=
3 4
8
3 6
+
8 3
=
19 6
9
8 3
+
5 7
=
71 21
10
1 7
+
3 6
=
27 42
1
+
3
=
9 14
11
3 6
+
6 3
=
15 6
3
+
6
=
5 2
12
6 3
+
5 4
=
39 12
6
+
5
=
13 4
13
5 4
+
3 7
=
47 28
14
4 7
+
3 6
=
45 42
4
+
3
=
15 14
15
3 6
+
2 9
=
13 18