Question

answer this fast the first answer will marked as the brainlist answer
don't give wrong answers​

Answer 1

Answer:

1. (i)

$\frac{2}{7} + \frac{5}{7} \\\\\frac{7}{7 } \\= 1$

(ii)

$\frac{-5}{9} \ + \frac{7}{9} \\\\= \frac{2}{9}$

(iii)

$2\frac{3}{11} + \frac{9}{-11} \\\\= \frac{25}{11} + \frac{-9}{11} \\\\=\frac{16}{11}$

(iv)

$\frac{-5}{4} + \frac{5}{4} \\\\= \frac{0}{4} \\\\= 0$

(v)

$-2\frac{5}{6} + \frac{13}{-6} \\\\= \frac{-17}{6} + \frac{-13}{6}\\ \\= \frac{-17-13}{6} \\\\\frac{-20}{6} \\\\\frac{-10}{3}$

(vi)

$\frac{-21}{3} + \frac{18}{3} \\\\= \frac{-21+18}{3} \\\\= \frac{-3}{3} \\\\= -1$

Answer 2

Answer:

Hope it will help you....