4.5 = 4 + \(\frac { 5 }{ 10 } \)
  = 4\(\frac { 5 }{ 10 } \) = 4\(\frac { 1 }{ 2 } \)
A juice container has 4\(\frac { 1 }{ 2 } \) litres of mango juice.

Two and twenty five thousandths
  = 2 + \(\frac { 25 }{ 1000 } \)
  = 2 + \(\frac { 2 }{ 100 } \)+\(\frac { 5 }{ 1000 } \)  [ since, \(\frac { 25 }{ 1000 } \)=\(\frac { 20+5 }{ 1000 } \)=\(\frac { 20 }{ 1000 } \)+\(\frac { 5 }{ 1000 } \)=\(\frac { 2 }{ 100 } \)+\(\frac { 5 }{ 1000 } \)]
  = 2 + \(\frac { 0 }{ 10 } \)+\(\frac { 2 }{ 100 } \)+\(\frac { 5 }{ 1000 } \) = 2.025 [as there is no tenth we take it as 0 tenth]

0.862 = \(\frac { 862 }{ 1000 } \)
 = \(\frac { 862\div 2 }{ 1000\div 2 } \) = \(\frac { 431 }{ 500 } \)

In 3\(\frac { 1 }{ 5 } \), keep the whole number 3 as such, we can find a fraction equivalent to \(\frac { 1 }{ 5 } \)with denominator 10.
 3 + \(\frac { 1 }{ 5 } \) = 3 + \(\frac { 1\times 2 }{ 5\times 2 } =3+\frac { 2 }{ 10 }\) = 3.2

We have to find a fraction equivalent to \(\frac { 1 }{ 50 } \) whose denominator is 100.
 \(\frac { 1 }{ 50 } \) = \(\frac { 1\times 2 }{ 50\times 2 } =\frac { 2 }{ 100 }\) = 0.02

0.85 = 0 + \(\frac { 8 }{ 10 } \)+\(\frac { 5 }{ 100 } \)
  = \(\frac { 85 }{ 100 } \)=\(\frac { 17 }{ 20 } \)
 A capsule holds \(\frac { 17 }{ 20 } \) mg of medicine

Four hundred four and five hundredths.
  = 404 + \(\frac { 5 }{ 100 } \)
  = 404 + 0 x \(\frac { 1 }{ 10 } \) + 5 x \(\frac { 1 }{ 100 } \) = 404.05

153 + 96 + 7 + \(\frac { 5 }{ 10 } \) + \(\frac { 2 }{ 1000 } \) = 256 + 5 x \(\frac { 1 }{ 10 } \) + 0 x \(\frac { 1 }{ 100 } \) + 2 x \(\frac { 1 }{ 1000 } \)
  = 256.502 (since hundredths place is not there, it is taken as '0' )

 \(\frac { 3 }{ 5 } \) = \(\frac { 6 }{ 10 } \) = 0.6