Question

Efetue as multiplicações.GENTE ME AJUDAR PELO AMOR DE DEUS 3 PRA AMANHÃ !!!​

Answer 1

A)

$\frac{3}{5} \times ( - \frac{1}{4}) = - \frac{3}{20}$

B)

$( - 5) \times ( - \frac{7}{3} ) = \frac{35}{3}$

C)

$( - 4.3) \times (2.1) = ( - \frac{43}{10} ) \times ( \frac{21}{10} )$

$- \frac{903}{100} = - 9.03$

D)

$( - \frac{5}{4} ) \times (7.8) = ( - \frac{ 5}{4} ) \times ( \frac{78}{10} ) = - \frac{390}{40}$

$- \frac{39}{4}$

E)

$( - 6.8) \times ( - 3.1) = ( - \frac{68}{10} ) \times ( - \frac{31}{10} )$

$\frac{2108}{100} = 21.08$

F)

$0 \times ( - \frac{2}{3} ) = 0$

G)

$2.5 \times ( - \frac{15}{4} ) = ( \frac{25}{10} ) \times ( - \frac{15}{4} )$

$- \frac{375}{40} = - \frac{75}{8}$

H)

$13 \times ( - 2.7) = 13 \times ( - \frac{27}{10} )$

$- \frac{351}{10} = - 35.1$

Espero ter ajudado!