(i) $3 \times \frac{9}{7} = \frac{27}{7}$ (ii) $\frac{14}{4} \times \frac{1}{2} = \frac{14}{8} = \frac{7}{4}$ (iii) $\frac{2}{3} \times \frac{3}{2} = 1$ (iv) $\frac{14}{6} \times \frac{3}{7} = \frac{42}{42} = 1$ (v) $\frac{4}{3} \times \frac{4}{3} = \frac{16}{9}$ (vi) $\frac{7}{4} \times 7 = \frac{49}{4}$ (vii) $4 \times \frac{15}{4} = 15$ (viii) $\frac{1}{5} \times 9 = \frac{9}{5}$ (ix) $\frac{1}{6} \times \frac{12}{11} = \frac{12}{66} = \frac{2}{11}$ (x) $\frac{11}{3} \div \frac{11}{8} = \frac{11}{3} \times \frac{8}{11} = \frac{8}{3}$