Question

B.{3/4[2/3-1/7]+5/6-4/5}=

Answer 1

Respuesta:

$\frac{3}{4} ( \frac{2}{3 } - \frac{1}{7} ) + ( \frac{5}{6} - \frac{4}{5} ) =$

$\frac{3}{4} ( \frac{11}{21} ) + ( \frac{1}{30} ) = \\ \frac{3}{4}( \frac{319}{70} ) = \\ \frac{117}{280} = \frac{13}{20}$