(4,5*1 2/3 - 6,75)*(1 1/3)³

4,5*1 2/3=15/2=7 1/27 1/2-6,75=3/4         6,75=6 75/1001 1/3*1 1/3*1 1/3=2 10/273/4*2 10/27=1 7/9