Question

найдите значение выражения
(92/5*1,5+0,4)*1/7-(1/6+3,5)

/ дробь

Answer 1

$( frac{92}{5} *1,5+0,4)* frac{1}{7} -( frac{1}{6} +3,5)= ( frac{92}{5}* frac{15}{10} +0.4)* frac{1}{7} -( frac{1}{6}+ frac{35}{10} )= \ = ( frac{276}{10} + frac{4}{10} )* frac{1}{7} -( frac{5}{30}+ frac{105}{30} )= ( frac{280}{10} )* frac{1}{7} -( frac{110}{30} )= \ = frac{40}{10} - frac{110}{30} = frac{120-110}{30} = frac{10}{30} = frac{1}{3}$