Question

Помогите решить по действиям:
$(3.24 div frac{9}{7} - 3 frac{1}{5} div 1 frac{1}{3} ) div ( - 0.9)$

Answer 1

$1).$
$3,24: frac{9}{7} =frac{324}{100}* frac{7}{9} =frac{252}{100}$
$2).$
$frac{16}{5}: frac{4}{3} = frac{16}{5}* frac{3}{4} = frac{4*3}{5*1} = frac{12}{5} =2,4$
$3).$
$frac{252}{100} -frac{240}{100}=frac{12}{100}$
$frac{12}{100}*(-frac{10}{9})=- frac{4*1}{10*3} =- frac{4}{30} =-frac{2}{15}$