Question

Как решить пример (1/8+2/9-1/4)*5 1/7:(7/9-2/3+1/6)

Answer 1

$( frac{1}{8} + frac{2}{9} - frac{2}{8} ) * frac{36}{7} : ( frac{7}{9} - frac{6}{9} + frac{1}{6} ) = ( frac{2}{9} - frac{1}{8} ) * frac{36}{7} : ( frac{1}{9} + frac{1}{6} ) =$

$( frac{16}{72} - frac{9}{72} ) * frac{36}{7} : ( frac{2}{18} + frac{3}{18} ) = frac{7}{72} * frac{36}{7} * frac{18}{5} = frac{36}{72} * frac{18}{5} = frac{9}{5} = 1 frac{4}{5}$