Question

5/7*(6/10-8/3)+7*2/21​ СРОЧНО ПЛИЗ

Answer 1

$frac{5}{7} times ( frac{6}{10} - frac{8}{3} ) + 7 times frac{2}{21} = frac{5}{7} times ( - frac{31}{21} ) + frac{2}{3} = - frac{1}{7} times frac{37}{3} + frac{2}{3 } = frac{31}{21} + frac{2}{3} = - frac{17}{21}$


Удачи))))