А)(5 5/4 -3 2/3+ 7 1/9* 3/16)/(1 1/9- 3 1/7* 7/22)=(25/4-11/3+64/9*3/16)/(10/9-22/7*7/22)=((75/20-44/20)+(4/3)/(10/9-1)=(31/20+4/3)/(10/9-9/9)=(93/60+80/60)/(1/9)=(173/60)/(1/9)=519/20=25 19/20= 25,95
Б)(3 1/3* 4 1/5+ 19 1/25 / 2 18/25)/(3 1/2* 4/7- 8 2/3 /34 2/3)=(10/3 * 21/5+ 476/25 / 68/25) /(7/2 * 4/7- 26/3 / 104/3)=(14+7)/(2-1/4)=(21) / (8/4 - 1/4)= (21)/ (7/4)=12