Question

(2005*8-704*21+6400/800)/(702*860-603704)

Answer 1

$(2005*8-704*21+6400/800)/(702*860-603704)=\ =(16040-704*21+8)/(702*860-603704)=\ =(16040-14784+8)/(603720-603704)=\ =(16048-14784)/16=1264/16= frac{1264}{16} = frac{632}{8} = frac{316}{4} = frac{79}{1} = 79.$
Ответ: 79