Question

efetue as multiplicações a seguir​

Answer 1

$a)5.4 \times 3.1 = 16.74$

$b)( - \frac{45}{49} ) \times ( \frac{48}{18} )$

$- \frac{45}{49} \times \frac{8}{3}$

$- \frac{15}{49} \times 8$

$- \frac{120}{49}$