3
/
4
de
20
=
____________________
2
/
3
de
15
=
10
3
/
5
de
20
=
12
1
/
4
de
32
=
8
3
/
7
de
____________________
=
9
1
/
3
de
____________________
=
4
2
/
5
de
15
=
6
1
/
2
____________________
16
=
8
4
/
5
____________________
25
=
20
1
/
5
de
30
=
6
2
/
3
de
9
=
6
3
/
4
de
16
=
12
____________________
/
5
de
20
=
8
1
/
3
de
24
=
____________________
4
/
9
de
18
=
____________________
1
/
4
de
24
=
6
3
/
5
de
15
=
9
1
/
2
de
12
=
6