Question 991447
 {{{3}}}{{{ 2/3}}} and {{{2}}} {{{3/4}}} are mixed numbers and, to subtract them, we convert both into improper fractions

{{{3}}}{{{ 2/3}}}={{{9/3+ 2/3}}}={{{11/3}}}

{{{2}}} {{{3/4}}} ={{{8/4+3/4}}} ={{{11/4}}} 

to subtract {{{11/3-11/4}}} we need find common denominator for {{{3}}} and {{{4}}} and it is {{{12}}}

so, {{{(11*4)/(3*4)-(11*3)/(4*3)=44/12-33/12=(44-33)/12=11/12}}}