Question

(1/4 ×-8/7) - (3/7÷21/49)________​

Answer 1

Answer:

0.39958350687 is the answer

Answer 2

Solution :-

$\implies\sf \bigg( \dfrac{1}{4} \times \dfrac{-8}{7} \bigg) - \bigg(\dfrac{3}{7} \div \dfrac{21}{49} \bigg)$

$\implies\sf \bigg(\dfrac{1}{4} \times \dfrac{-8}{7}\bigg) - \bigg(\dfrac{3}{7} \times \dfrac{49}{21}\bigg)$

$\implies\sf \bigg(\dfrac{-8}{28}\bigg) - \bigg(\dfrac{147}{147}\bigg)$

$\implies\sf \bigg(\cancel\dfrac{-8}{28}\bigg) - \bigg(\cancel\dfrac{147}{147}\bigg)$

$\implies\sf \bigg(\dfrac{-2}{7}\bigg) - \bigg(1\bigg)$

$\implies\sf \dfrac{-2}{7} - 1$

$\implies\sf \dfrac{-2-7}{7} - 1 = \dfrac{-9}{7}$

$\implies\sf Ans = \dfrac{-9}{7}$