Step-by-step explanation:
a)as a fraction 21/60 after we simplify its
= 7/20
as a decimal 21÷60
=0.35
in percentage; 0.35×100
=35%
b)0.18 as fraction 18/100
=9/50
ratio; 9:50
percentage:9/50×100%
=18%
c)82%as a fraction 82/100
=41/50
in ratio; 41:50
as a decimal: 82/100
0.82
