(3 14 + 0,25-1 524):(2 34- 4 12- 0,75):( - 4 712)=

[latex](3 frac{1}{4} +0.25-1 frac{5}{24} ):(2 frac{3}{4} -4 frac{1}{2} -0.75): (-4frac{7}{12} )= \ =(frac{13}{4}+frac{1}{4}-frac{29}{24} ):(frac{11}{4}-frac{9}{2}-frac{3}{4}):(-frac{55}{12})= \ =(frac{84}{24}-frac{29}{24} ):(frac{8}{4}-frac{18}{4}):(-frac{55}{12})= \ =frac{55}{24}:(-frac{10}{4}):(-frac{55}{12})=frac{55}{24}:frac{10}{4}:frac{55}{12}= \ =frac{55}{24}cdotfrac{4}{10}cdotfrac{12}{55}=frac{2}{10}=0.2[/latex]

(35/10-29/24):(11/4-525/100):(-55/12)=55/24:(-2.5):(-55/12)=1/2*10/25=1/5Ответ: 1/5