Question

represent in the form of p/q

Q 0.625 in 25 bar

Answer 1

As we have bar on two digits after decimal, i.e. 25
Therefore we will multiply both sides by 100
So,
Let  x = 0.62525....                                         ------------------(1)
 100x = 62.52525....                                       ------------------(2)

Now Subtracting equation 2 from 1,
100x - x = 62.52525.... - 0.62525...
       99x = 61.9
            x = $\frac{619}{99*10}$
            x = $\frac{619}{990}$

Therefore, the $\frac{p}{q}$ form of 0.625 (with 25 bar) is $\frac{619}{990}$.