Write the additive inverse of :

(i) 5

(ii) -7

(iii) $\dfrac{5}{9}$

(iv) $\dfrac{-3}{17}$

(v) 0

(vi) $11\dfrac{5}{17}$

(vii) $-5\dfrac{3}{8}$

(viii) -37

(ix) 1

Write the multiplicative inverse of :

(i) 9

(ii) -1

(iii) $\dfrac{11}{16}$

(iv) $5\dfrac{1}{4}$

(v) $\dfrac{-2}{3}$

(vi) $17\dfrac{3}{20}$

(vii) $–18\dfrac{1}{2}$

(viii) –5

(ix) $\dfrac{-20}{41}$

Find a rational number between $\dfrac{3}{5}$ and $\dfrac{7}{9}$.

Find two rational numbers between :

(i) 2 and 3

(ii) $\dfrac{1}{3} \text{ and } \dfrac{2}{5}$

(iii) $\dfrac{3}{4} \text{ and } 1\dfrac{1}{5}$

(iv) –2 and 1