Question

Найдите значение выражения
(2/3+4/7)х42=?

Answer 1

$frac{2}{3} + frac{4}{7} = frac{14}{21} + frac{12}{21} = frac{26}{21} = 1 frac{5}{21} \ \ frac{26}{21}*42= frac{26}{21}* frac{42}{1} = frac{1092}{21} =52$