Angie and her friends ate ##3/4## of a pizza. Her brother Joe ate ##2/3## of what was left. How much of the original pizza did Joe eat?

Joe ate ##1/6## of the original pizza

The whole pizza is the unit ##1##

Angie and her friends ate ##3/4## of the pizza,

then they left:

##1-3/4=(4-3)/4=1/4##

Joe ate the ##2/3## of ##1/4##

then

##2/3 *1/4=##

semplifying

##=cancel(2)^1/cancel(12)^6=1/6##