Question

me ajuda fazendo favor para amanha ? (2/5-3.4/9 ):1/3

Answer 1

Oi,

Resolução

(2/5-3.4/9 ):1/3
(2/5 - 12/9) : 1/3
(18/45 - 60/45) : 1/3
- 42/45 : 1/3
- 42/45 × 3/1 = - 126/45 = - 14/5

Espero ter ajudado e bons estudos !

Answer 2

$\left(\frac{2}{5}-3.\frac{4}{9}\right)\div\frac{1}{3}\\ \\ \left(\frac{2}{5}-\frac{4}{3}\right)\div\frac{1}{3}\\ \\ \left(\frac{6-20}{15}\right)\div\frac{1}{3}\\ \\ \left(\frac{-14}{15}\right)\div\frac{1}{3}\\ \\ \frac{-14}{15}.\frac{3}{1}=-\frac{14}{5}$