[tex]162:12=(120+36+6):12=(120:12)+(36:12)+(6:12)\\\\=10+3+(6:12)=13\ and\ R=6\\\\or = (120:12)+(36:12)+(6:12)=10+3+0.5=13.5[/tex]
[tex]other\ method:\\\\\underline{13.5}\\162:12\\\underline{12}\\.\ 42\\\underline{.\ 36}\\.\ \ \ 60\\\underline{.\ \ \ 60}\\.\ \ ==[/tex]