Question

calcule o valor das expressões numéricas: (-3/7) . (+2,1) - (+5/9). (-3/2) pfvvv man​

Answer 1

Resposta:

$(-\frac{3}{7})\times(+2,1)-(+\frac{5}{9} )\times(-\frac{3}{2} )$

$(-\frac{3}{7} )\times\frac{21}{10} +\frac{5}{3} \times\frac{1}{2}$

$-3\times\frac{3}{10} +\frac{5}{6}$

$-\frac{9}{10} +\frac{5}{6}$

$-\frac{1}{15}$

$\boxed{\boxed{\boxed{\boxed{RESPOSTA:-\frac{1}{15} }}}}$