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분수: 분모가 다른 덧셈1분수9

1
1 9
+
3 4
=
31 36
2
3 4
+
6 3
=
33 12
3
+
6
=
11 4
3
6 3
+
2 7
=
48 21
6
+
2
=
16 7
4
2 7
+
1 3
=
13 21
5
1 9
+
4 4
=
40 36
1
+
4
=
10 9
6
4 4
+
9 3
=
48 12
4
+
9
=
4
7
9 3
+
5 7
=
78 21
9
+
5
=
26 7
8
5 7
+
2 4
=
34 28
5
+
2
=
17 14
9
4 8
+
1 9
=
44 72
4
+
1
=
11 18
10
1 9
+
7 5
=
68 45
11
5 9
+
1 7
=
44 63
12
1 7
+
3 2
=
23 14
13
3 2
+
4 5
=
23 10
14
3 4
+
1 6
=
11 12
15
1 6
+
6 4
=
20 12
1
+
6
=
5 3