any fraction say a/b, can be written as a decimal by simply getting the quotient from a ÷ b.
now, let's first convert the mixed fraction to an "improper" one, and then do the division.
![\bf \stackrel{mixed}{4(3)/(11)}\implies \cfrac{4\cdot 11+3}{11}\implies \stackrel{improper}{\cfrac{47}{11}}\qquad \stackrel{\textit{to a decimal}}{47 / 11}\implies 4.\overline{27}](https://img.qammunity.org/2019/formulas/mathematics/middle-school/os1hh4ag96s0x4hggpazr9il89284b3r23.png)
the bar on the 27 simply means it endlessly repeating, 272727272727.....