Question

a) (1/2).(8/9)

b) (-0,6).(-1,25)​

Answer 1

Resposta:

a)

$\frac{1}{2} \times \frac{8}{9} = \frac{1 \times 8}{2 \times 9} = \frac{8}{2} \times \frac{1}{9} = 4 \times \frac{1}{9} = \frac{4}{9}$

b)

$( - 0,6) \times ( - 1,25) = ( - \frac{6}{10} ).( - \frac{125}{100} ) = ( - \frac{3}{5} ).( - \frac{5}{4} ) = ( - \frac{5}{5} ).( - \frac{3}{4} ) = - 1.( - \frac{3}{4} ) = + \frac{3}{4} =0,75$