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분수: 분모가 다른 덧셈1분수7

1
1 7
+
5 3
=
38 21
2
1 6
+
3 3
=
7 6
3
6 4
+
1 2
=
8 4
6
+
1
=
2
4
1 2
+
8 9
=
25 18
5
1 3
+
4 4
=
16 12
1
+
4
=
4 3
6
4 4
+
1 7
=
32 28
4
+
1
=
8 7
7
1 7
+
4 2
=
30 14
1
+
4
=
15 7
8
8 2
+
9 9
=
90 18
8
+
9
=
5
9
9 9
+
4 8
=
108 72
9
+
4
=
3 2
10
8 7
+
1 5
=
47 35
11
1 5
+
5 6
=
31 30
12
5 6
+
3 3
=
11 6
13
3 3
+
2 6
=
8 6
3
+
2
=
4 3
14
2 6
+
3 3
=
8 6
2
+
3
=
4 3
15
3 3
+
1 6
=
7 6