What is 82 divided by 4
\(82:4\\\\82=80+2\\\\therefore:\\\\80:4=20\ and\ 2:4=\frac{2}{4}=\frac{1}{2}\ or\ in\ decimal\ 0.5\\\\conclusion:\\\\82:4=20+\frac{1}{2}=\boxed{20\frac{1}{2}=20+0.5=20.5}\)