Question

divide the sum of minus 13 by 5 and 12 by 7 by the product of minus 31 by 7 and minus 1 by 2

Answer 1

Hi friend, Harish here.

Here is your answer:

To find,

$( \frac{-13}{5} + \frac{12}{7} ) \div ( \frac{-31}{7} \times \frac{-1}{2})$

Solution:

⇒ $( \frac{-13}{5} + \frac{12}{7} ) \div ( \frac{-31}{7} \times \frac{-1}{2}) = ( \frac{-91}{35}+ \frac{60}{35}) \div ( \frac{-31 \times -1}{7\times 2})$

⇒  $( \frac{(-91) +60}{35} ) \div ( \frac{31}{14})$

⇒  $( \frac{-31}{35}) \div ( \frac{31}{14})$

⇒  $( \frac{-31}{35}) \times ( \frac{14}{31}) = \frac{-14}{35} = \frac{-2}{5}$

Therefore the answer is -2/5 .
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Hope my answer is helpful to you.