Б)
(-1,2+4,125):0,0015+(-3,5+4,2)*1000=2,925:0,0015+0,7*1000=1950+700=2650
в)
(3,625+0,25+2,75):(-15+28,75+92,25):0,0625=6,625:106:0,0625=0,0625/0,0625=1
б) ((1/5+8/3+15/4)*15/397)/-(242/8+14)=((12/60+160/60+225/60)*15/397))/--(121/4+14)=((397/60)*15/397))/ - 121/4 = 1/4/(-(121/4+56/4))=1/4*(- 177/4=-1/177
в)
((10/3*19/10+19 7/20: 9/2)) / (-12/75+ 62/75)= -(19/3+387/20 : 9/2) / -50/75=(19/3+43/10)/50/75 = (190/30+129/30)/ 2/3 = 319/30 : 2/3 = 319/30* 3/2=319/20 =15 19/20