Question

(-1ц 13)*910= помогите решить

Answer 1

$-1 frac{1}{3} * frac{9}{10} =-frac{3*1+1}{3} * frac{9}{10}=-frac{4}{3} * frac{9}{10}= -frac{2}{1} * frac{3}{5}=-frac{6}{5}=-1frac{1}{5}$