Question

Thea value of this expression is
{2\5×-3/7-1/14×3/7×3/5}
A)-1/3
B)-1/2
C)-1/4
D)1/2​

Answer 1

Answer:

$\frac{2}{5} \times ( \frac{ - 3}{7} - \frac{1}{14} ) \times \frac{3}{7} \times \frac{3}{7} \\ = \frac{2}{5} \times ( \frac{ - 6 - 1}{14} ) \times \frac{9}{49} \\ = \frac{2}{5} \times ( \frac{ - 7}{14} ) \times \frac{9}{49} \\ = \frac{2}{5} \times( \frac{ - 1}{7} ) \times \frac{9}{49} \\ = \frac{ - 18}{1715}$

Answer 2

Answer:

$$\begin{lgathered}\frac{2}{5} \times ( \frac{ - 3}{7} - \frac{1}{14} ) \times \frac{3}{7} \times \frac{3}{7} \\ = \frac{2}{5} \times ( \frac{ - 6 - 1}{14} ) \times \frac{9}{49} \\ = \frac{2}{5} \times ( \frac{ - 7}{14} ) \times \frac{9}{49} \\ = \frac{2}{5} \times( \frac{ - 1}{7} ) \times \frac{9}{49} \\ = \frac{ - 18}{1715}\end{lgathered}$$