Question 1157180
{{{(1/27 )*( 1/8 ) - 1/3}}}..........apply multiplication rule for {{{(1/27)*( 1/8) }}}; multiply numerator by numerator, and denominator by  denominator

{{{(1*1)/(27*8) - 1/3}}}

{{{1/216 - 1/3}}}.........find common denominator 

{{{1/216 - (1*72)/(3*72)}}}

{{{1/216 - 72/216}}}

{{{(1 - 72)/216}}}

{{{ - 71/216}}}