3
/
4
de
20
=
____________________
2
/
6
de
36
=
____________________
1
/
2
de
16
=
____________________
3
/
8
de
64
=
____________________
2
/
9
de
81
=
____________________
1
/
3
de
12
=
____________________
4
/
5
de
25
=
____________________
1
/
2
de
80
=
____________________
2
/
5
de
15
=
____________________
3
/
5
de
20
=
____________________
3
/
7
de
21
=
____________________
2
/
5
de
20
=
____________________
1
/
2
de
12
=
____________________
2
/
10
de
50
=
____________________
1
/
5
de
30
=
____________________
1
/
4
de
32
=
____________________
2
/
3
de
9
=
____________________
3
/
5
de
15
=
9
