Question

calcule os seguintes produtos

Answer 1

a)

$(-5).(-\frac{2}{11})\\\\ \frac{10}{11}$

b)

$\frac{9}{11}.(-\frac{44}{27})$

Simplificando 9 e 27, e 11 e 44:

$\frac{1}{1}.(-\frac{4}{3})\\\\ -\frac{4}{3}$

c)

$\frac{32}{10}.(-\frac{5}{16})$

Simplificando 10 e 5, e 32 e 16:

$\frac{2}{2}.(-\frac{1}{1})$

Simplificando 2 e 2, e 1 e 1:

$\frac{1}{1}(-1)\\\\ 1.(-1)\\\\ -1$