Question

The value of the expression:


{2/5×-3/7-1/14-3/7×3/5} is


A)1/3
B)-1/2
C)-1/4
D)1/2

​

Answer 1

Answer:

the answer is 5/14

Step-by-step explanation:

$\frac{2}{5} * \frac{-3}{7} - \frac{1}{14} -\frac{3}{7} * \frac{3}{5} \\\\\frac{(-6)}{35} - \frac{1}{14} -\frac{ 9}{35} \\\\\frac{(-6)}{35}-\frac{ 9}{35} - \frac{1}{14}\\\\\\\frac{(-6)-9}{35} - \frac{1}{14}\\\\\frac{-15}{35} - \frac{1}{14} \\\\\frac{-3}{7} - \frac{1}{14} \\\\\frac{-3(14) -7}{7(14)} \\\\\\\frac{42 - 7}{98}\\\\\frac{35}{98}\\ \\\frac{5}{14}$

so the answer is 5/14

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