a)
[tex]( - \frac{1}{2} {)}^{3} = - \frac{1}{8} [/tex]
b)
[tex]( - \frac{3}{4} {)}^{2} = \frac{9}{16} [/tex]
c)
[tex]( - \frac{1}{5} {)}^{3} = - \frac{1}{125} [/tex]
d)
[tex] \frac{3}{4} \times ( - \frac{2}{9} ) = - \frac{6}{36} = - \frac{1}{6} [/tex]
e)
[tex]1 \frac{1}{3} \times ( - 2 \frac{1}{2} ) = \frac{4}{3} \times ( - \frac{5}{2} ) = - \frac{20}{6} = - 3 \frac{2}{6} = - 3 \frac{1}{3} [/tex]
f)
[tex]( - \frac{3}{5} ) \div ( - \frac{2}{10} ) = ( - \frac{ 3 }{5} ) \times ( - \frac{10}{2} ) = \frac{30}{10} = 3[/tex]
g)
[tex]( - \frac{1}{2} ) + ( - 3 \frac{2}{5} ) = ( - \frac{5}{10} ) + ( - \frac{17}{5} ) = ( - \frac{5}{10} ) + ( - \frac{34}{10} ) = - \frac{39}{10} = - 3.9[/tex]
