Question

me ajudam por favor​

Answer 1

Resposta:

Espero ter ajudado!

Explicação passo-a-passo:

1 _ a) $\frac{5}{3} . (\frac{-12}{7})$ = $\frac{-60}{21}$ : 3 = $\frac{-20}{7}$

b) $\frac{-4}{9} . \frac{6}{5} . 3$ = $\frac{-72}{45}$ : 3 = $\frac{-24}{15}$ : 3 = $\frac{-8}{5}$

c)$\frac{2}{9} . (\frac{-5}{7}) . \frac{9}{2}$ = $\frac{-90}{126}$ : 9 = $\frac{-10}{14}$ : 2 = $\frac{-2}{7}$

2 _ a) 9,7 . (-1,25) = -12,125

b) 1,234 . 4,23 = 5,21982

c) -62,49 . (-0,27) = 16,8723

3 _ a) $\frac{6}{11} . (\frac{-4}{9}) = (\frac{-24}{99}): 3 = \frac{-8}{33}$

b) $\frac{15}{8} . \frac{5}{9} = \frac{75}{72} : 3 = \frac{25}{24}$

c) $\frac{-35}{12} .\frac{1}{-2} = \frac{-35}{-24}$