1)...=(74/10-11/3)/8-1=112/30*1/8-1=7/15-1=-8/15
2)...=79/12+25,5=39,5+25,5=65
3)...=71/15*3+13,2=14,2+13,2=27,4
4)...=(25-24)/40*3,6+1,01=0,09+1,01=1,1
5)...=3/8-((28-27)/63)*63/8=3/8-1/8=2/8=1/4=0,5
6)...=(3/5*9/4*4/3)/(3/2*8/3*0,36)=9/5*25/36=5/4=1,25
7)...=(22/15+12/5)/(29/14)=58/15*14/29=28/15
8)...=0,3/0,18-13/20*10/2=0,3/0,18-13/4=3