Q1) Evaluate:
(i) \frac{-2}{3}+\frac{3}{4}
(ii) \frac{7}{-27}+\frac{11}{18}
(iii) \frac{-3}{8}+\frac{-5}{12}
(iv) \frac{9}{-16}+\frac{-5}{-12}
(v) \frac{-5}{9}+\frac{-7}{12}+\frac{11}{18}
(vi) \frac{7}{-26}+\frac{16}{39}
(vii) -\frac{2}{3}-\left(\frac{-5}{7}\right)
(viii) -\frac{5}{7}-\left(-\frac{3}{8}\right)
(ix) \frac{7}{26}+2+\frac{-11}{13}
(x) -1+\frac{2}{-3}+\frac{5}{6}