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분수: 분모가 다른 덧셈2분수4

1
2 4
+
3 3
=
18 12
2
+
3
=
3 2
2
3 3
+
1 5
=
18 15
3
+
1
=
6 5
3
5 4
+
1 2
=
7 4
4
1 8
+
5 7
=
47 56
5
5 7
+
1 6
=
37 42
6
1 6
+
2 7
=
19 42
7
2 7
+
5 9
=
53 63
8
5 9
+
7 2
=
73 18
9
7 2
+
4 4
=
18 4
7
+
4
=
9 2
10
2 4
+
1 8
=
5 8
11
1 8
+
5 5
=
45 40
1
+
5
=
9 8
12
5 5
+
4 2
=
30 10
5
+
4
=
3
13
2 4
+
3 2
=
8 4
2
+
3
=
2
14
3 2
+
5 4
=
11 4
15
1 9
+
2 3
=
7 9