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분수: 분모가 다른 덧셈4분수7

1
3 6
+
1 8
=
15 24
3
+
1
=
5 8
2
1 7
+
3 4
=
25 28
3
4 4
+
1 6
=
14 12
4
+
1
=
7 6
4
1 4
+
3 9
=
21 36
1
+
3
=
7 12
5
9 2
+
1 4
=
19 4
6
8 7
+
1 8
=
71 56
7
1 8
+
9 6
=
39 24
1
+
9
=
13 8
8
9 6
+
1 5
=
51 30
9
+
1
=
17 10
9
9 6
+
1 5
=
51 30
9
+
1
=
17 10
10
1 9
+
8 4
=
76 36
1
+
8
=
19 9
11
8 4
+
9 8
=
25 8
12
9 8
+
4 2
=
25 8
13
4 2
+
3 4
=
11 4
14
1 8
+
4 4
=
9 8
15
4 4
+
3 9
=
48 36
4
+
3
=
4 3