3:4.5= 2 1/2 : 3 3/4=5:2.5=20:16=

Question

3:4.5=
2 1/2 : 3 3/4=
5:2.5=
20:16=

Answer 1

1.  2/3
2.  10/13
3.  2
4.  1,25

Answer 2

3:4.5=0.666(6)
2) =0.666(6)
3) 2
4) 1.25