Question

5/6-2/3*7/8-1/2*-4 Пожалуйсто помогите

Answer 1

$(frac{5}{6} - frac{2}{3}) *( frac{7}{8} - frac{1}{2} )*(-4) =-0,25$

$1) frac{5}{6} - frac{2}{3} = frac{1*5-2*2}{6} = frac{5-4}{6} = frac{1}{6}$

$2) frac{7}{8} -frac{1}{2} = frac{1*7-4*1}{8} = frac{7-4}{8} = frac{3}{8}$

$3) frac{1}{6} * frac{3}{8} = frac{1}{2} * frac{1}{8} = frac{1}{16}$

$4) frac{1}{16} *(-4)= - frac{1}{16} * frac{4}{1} =- frac{1}{4}* frac{1}{1} =- frac{1}{4} = -0,25$