Question

11.9-1целая 4 пятых ×1 целая 1 третья

Answer 1

$11,9-1 frac{4}{5} *1 frac{1}{3} =11,9- frac{9}{5}* frac{4}{3} =11,9- frac{3}{5}* frac{4}{1} =11,9- frac{12}{5} =11,9-2,4$=9,5