Write each of the following rational numbers in standard form :

(i) $\dfrac{56}{32}$

(ii) $\dfrac{16}{-40}$

(iii) $\dfrac{-36}{54}$

(iv) $\dfrac{-22}{-77}$

(v) $\dfrac{78}{-65}$

(vi) $\dfrac{-95}{114}$

(vii) $\dfrac{-69}{115}$

(viii) $\dfrac{155}{-217}$

Find the value of x such that :

(i) $\dfrac{-2}{3} = \dfrac{14}{x}$

(ii) $\dfrac{8}{-3} = \dfrac{x}{6}$

(iii) $\dfrac{5}{9} = \dfrac{x}{-27}$

(iv) $\dfrac{11}{6} = \dfrac{-55}{x}$

(v) $\dfrac{15}{x} = -3$

(vi) $\dfrac{-36}{x} = 2$

Which of the two rational numbers is greater in each of the following pairs?

(i) $\dfrac{3}{-7}$ or $\dfrac{1}{7}$

(ii) $\dfrac{11}{-18}$ or $\dfrac{-5}{18}$

(iii) $\dfrac{7}{10}$ or $\dfrac{-9}{10}$

(iv) 0 or $\dfrac{-3}{4}$

(v) $\dfrac{1}{12}$ or 0

(vi) $\dfrac{18}{-19}$ or 0

(vii) $\dfrac{7}{8}$ or $\dfrac{11}{16}$

(viii) $\dfrac{11}{-12}$ or $\dfrac{-10}{11}$

(ix) $\dfrac{-13}{5}$ or -4

(x) $\dfrac{17}{-6}$ or $\dfrac{-13}{4}$

(xi) $\dfrac{7}{-9}$ or $\dfrac{-5}{8}$

(xii) $\dfrac{-3}{-8}$ or $\dfrac{5}{9}$

Fill in the blanks with the correct symbol out of >, = or < :

(i) $\dfrac{-17}{4}$ …………… $\dfrac{-15}{4}$

(ii) 0 …………… $\dfrac{-1}{-2}$

(iii) $\dfrac{4}{-3}$ …………… $\dfrac{-8}{7}$

(iv) $\dfrac{-5}{12}$ …………… $\dfrac{7}{-16}$

(v) $\dfrac{-7}{8}$ …………… $\dfrac{-8}{9}$

(vi) $\dfrac{1}{-10}$ …………… $\dfrac{-4}{-5}$