Let u(x) and v(x) are differentiable function such that $\frac{u\left(x\right)}{v\left(x\right)}=7\text{. If }\frac{u^{\mathrm{\prime }}\left(x\right)}{v^{\mathrm{\prime }}\left(x\right)}=p\text{ and }{\left(\frac{u\left(x\right)}{v\left(x\right)}\right)}^{\mathrm{\prime }}=q$ then $\frac{p+q}{p-q}=$