Khotenovskaya =-(40:28)*1000=-(10*1000:7)=-10000:7=-1428+4:7

evvoronina1 (-8•5/-28)•1000 =
= (-40/-28)•1000 =
= (40/28)•1000
= (10/7) • 1000 =
= 10000/7 = 1428 целых 4/7