a) 3 % = 3/100 iredutibilă
b) 5% = 5/100 simplificam prin 5 = 1/20
c) 10% = 10/100 simplificam prin 10 =1/10
d) 12%= 12/100 simplificam prin 3/25
e) 15% = 15/100 simplificam prin 5 = 3/20
f) 48%= 48/100 simplificam prin 4 = 12/25
g) 75% = 75/100 simplificam prin 25 =3/4
h) 120% = 120/100 simplificam prin 20
=6/5
i) 2,5 % = 2,5/100 amplificăm prin 10
= 25/1000simplicam prin 25 = 1/40