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분수: 분모가 다른 덧셈4분수0

1
4 7
+
3 3
=
33 21
4
+
3
=
11 7
2
3 3
+
7 2
=
27 6
3
+
7
=
9 2
3
7 2
+
9 3
=
39 6
7
+
9
=
13 2
4
9 3
+
5 4
=
51 12
9
+
5
=
17 4
5
5 4
+
6 3
=
39 12
5
+
6
=
13 4
6
6 3
+
4 5
=
42 15
6
+
4
=
14 5
7
4 5
+
2 3
=
22 15
8
2 3
+
9 6
=
13 6
9
9 6
+
3 2
=
18 6
9
+
3
=
3
10
5 2
+
3 6
=
18 6
5
+
3
=
3
11
3 6
+
4 7
=
45 42
3
+
4
=
15 14
12
4 7
+
3 3
=
33 21
4
+
3
=
11 7
13
3 3
+
1 2
=
9 6
3
+
1
=
3 2
14
1 2
+
3 9
=
15 18
1
+
3
=
5 6
15
9 3
+
4 4
=
48 12
9
+
4
=
4