3 3/10 * (-23 1/3) = (3*10+3)/10*(-23*3-1/3)=33/10*(-70/3)= - (33*70)/(10*3)= - (3*11*7*10)/(10*3)= - 11*7= - 77.
3 3/10 * (-23 1/3) = (3*10+3)/10*(-23*3-1/3)=33/10*(-70/3)= - (33*70)/(10*3)= - (3*11*7*10)/(10*3)= - 11*7= - 77.