Question

Срочно!!! Даю 20 баллов

Answer 1

$2 frac{4}{15} - (2 - 1 frac{1}{15}) div frac{4}{9} + frac{9}{2} = \ = 2 frac{4}{15} - frac{14}{15} times frac{9}{4} + frac{9}{2} = \ =frac{34}{15} - frac{21}{10} + frac{9}{2} = \ = frac{34 times 2 - 21 times 3 + 9 times 15}{30} = \ = frac{68 - 63 + 135}{30} = frac{140}{30} = \ = frac{14}{3} = 4 frac{2}{3}$