Question

O valor da expressão numérica (+1/4) : (+5/9) . (-5/3)

Answer 1

Resposta:

$(\frac{+1}{4}) : (\frac{+5}{9}) x (\frac{-5}{3})= \\\\(\frac{+1}{4}) : (\frac{+5}{9})= \frac{9}{20} \\\\(\frac{9}{20}) x (\frac{-5}{3})= -\frac{3}{4}$