Question

значение выражения 3/4•1 5/6 -2/3:5/6+4 1/2

Answer 1

$frac{3}{4} *1 frac{5}{6} - frac{2}{3} : frac{5}{6} +4 frac{1}{2} = \ \ frac{3}{4} * frac{11}{6} - frac{2}{3} * frac{6}{5} + frac{9}{2} = \ \ frac{3*11}{4*6} - frac{2*6}{3*5} + frac{9}{2} = \ \ frac{11}{8} - frac{4}{5} + frac{9}{2} = \ \ frac{55-32+180}{40} = frac{203}{40} =5 frac{3}{40} =5.075$