Question 746912
Five dozen is cut into equal portions of {{{1&3/4}}} dozen each.

{{{5/1&3/4}}} and the unit is {{{dozen/(dozen/box)=box}}}.


COMPUTATION

{{{5/(7/4)=5*4/7=20/7}}}
This is {{{2&6/7}}}, which needs to be 3 boxes.  


ALTERNATIVE CHECK:

5 dozen is 60.

One and three quarters dozen is 21.  

{{{60/21=2.86}}},  not bad.  Same as {{{20/7}}}.