Question

solve these questions on note book. ​

Answer 1

Answer:

a)$2 \frac{1}{5} - \frac{( - 1)}{3}$

$= > \frac{11}{5} - \frac{( - 1)}{3}$

LCM of 5 and 3 is 15.

$= > \frac{11}{5} + \frac{1}{3}$

$= > \frac{33 + 5}{15} \\ \\ = > \frac{38}{15} \\ \\ = > 2 \frac{8}{15}$

Therefore, The answer is 2 whole 8/15.

b) $\frac{2}{3} \times \frac{ - 5}{9}$

$= > \frac{2 \times ( - 5)}{3 \times 9} \\ \\ = > \frac{ - 10}{27}$

Therefore, The answer is -10/27.

c) $\frac{ - 7}{12} \div \frac{( - 2)}{13}$

$= > \frac{ - 7}{12} \times \frac{13}{ - 2} \\ \\ = > \frac{ - 91}{ - 24} \\ \\ = > \frac{91}{24}$

Therefore, The answer is 91/24.