Question

Calcule o resultado desta divisoes simplicando sempre q possivel
A (-2):(-0,5)
B (-1,2):(+0,1)
C (-0,4):(-0,5)

Answer 1

A)

$( - 2) \div ( - 0.5) = ( - 2) \div ( - \frac{5}{10}) = ( - 2) \div ( - \frac{1}{2} ) = ( -2) \times ( - \frac{2}{1} ) = ( - 2) \times ( - 2) = 4$

B)

$( - 1.2) \div ( + 0.1) = - \frac{12}{10} \div \frac{1}{10} = - \frac{12}{10 } \times 10 = - \frac{120}{10 } = - \frac{12}{1} = - 12$

C)

$( - 0.4) \div ( - 0.5) = - \frac{4}{10} \div ( - \frac{5}{10} ) = - \frac{2}{5} \div ( - \frac{1}{2} ) = - \frac{2}{5} \times ( - 2) = - \frac{4}{5} = - 0.8$