Question

Please guys help me in this.

(No spamming)​

Answer 1

Step-by-step explanation:

there are two photos so please do not confuse sorry for that

please mark me as brinalist if it helped you

Answer 2

Step-by-step explanation:

we can solve this by bodmas

listen first you should remove brackets

then the sum becomes

$(\frac{2}{5} + \frac{1}{7} ) \div ( \frac{1}{5} - \frac{1}{8} ) - \frac{5}{21}$

$taking \ \: \: \: lcm$

$(\frac{19}{35} \div \frac{3}{40} ) - \frac{5}{21}$

$= \frac{ \frac{19}{35} }{ \frac{3}{40} } - \frac{5}{21}$

$= (\frac{19}{35} \times \frac{40}{3} ) - \frac{5}{21}$

$= ( \frac{152}{21} - \frac{5}{21})$

$= \frac{147}{21}$

$= 7$