a) o zi are 24 de ore
8/24=1/3
e)un an are 12 luni
9/12=3/4
b) o săptămana are 7 zile
5/7
f)un metru are 100 cm
48/100= 12/25
c) un an bisect are 366 de zile
15/366=5/122
g) o zi are 24 de ore
24/24=1
d) un minut are 60 secunde
30/60=1/2
h) un an are 4 anotimpuri
1/4