Represent $0.3125$ in the form of $\frac{p}{q}$ where $p$ and $q$ are integers?

Q. How do you represent $0.3125$ in the form of $\frac{p}{q}$ where $p$ and $q$ are integers?

Q. How do you represent $0.3125$ in the form of $\frac{p}{q}$, where $p$ and $q$ are integers and $q$ is not zero?

Q. Represent $0.123\overline{456}$ in the form of $\frac{p}{q}$, where p and q are integers and $q\ne 0$.

Q. Solve the following equations and express the roots in form $\frac{p}{q}$ (where q≠0 and p, q are two integers)

A. 7x=14

B. 4p+32=0

Q. If $\alpha ,\beta$ are the roots of the equation $x^2-px+q=0$, then the quadratic equation whose roots are $({\alpha }^2-{\beta }^2)({\alpha }^3-{\beta }^3)$ and $({\alpha }^3{\beta }^2+{\alpha }^2{\beta }^3)$: