Question

Answer 1

c: =3/11(-10/18-13/18)

=-3/11*23/18

=-69/198=-23/66

d: =32/15*9/17*3/32*(-17)/3

=3/15*9/(-3)=-1/5*3=-3/5

Answer 2

c)

\(C=\dfrac{3}{11}.\left(-\dfrac{5}{9}+\dfrac{\left(-13\right)}{18}\right)\\ =\dfrac{3}{11}.\left(-\dfrac{10}{18}-\dfrac{13}{18}\right)\\ =\dfrac{3}{11}.\left(\dfrac{-10-13}{18}\right)\\ =\dfrac{3}{11}.\dfrac{-23}{18}\\ =-\dfrac{69}{198}=-\dfrac{23}{66}\)

d)

\(D=\left(\dfrac{32}{15}.\dfrac{9}{17}.\dfrac{3}{32}\right).\dfrac{\left(-17\right)}{3}\)

\(=\dfrac{32.3.3.3.\left(-17\right)}{3.5.17.32.3}=\dfrac{-3}{5}\)