Question 807923

{{{blue _jeans=2/3}}}

if {{{2/6}}} of those students are also wearing red shirts, means

{{{blue _jeans+red_ jeans=(2/6)(2/3)}}} 

{{{blue _jeans+red _jeans=4/18}}}

{{{blue_ jeans+red_ jeans=2/9}}}.......fraction of students are wearing blue jeans and red shirts