Let's simplify the expression \(\left( \frac{2}{7} \times -5 \right) - \left( \frac{4}{7} \times 6 \right)\) step by step, similar to the previous breakdown, and then we can see if any of the options match.
-
First, compute each term:
\[
\frac{2}{7} \cdot -5 = -\frac{10}{7}
\]
\[
\frac{4}{7} \cdot 6 = \frac{24}{7}
\]
-
Substitute these values into the expression:
\[
-\frac{10}{7} - \frac{24}{7} = -\frac{10 + 24}{7} = -\frac{34}{7}
\]
Now, we can express \(-\frac{34}{7}\) in a different form to see if it matches any of the options:
\[
-\frac{34}{7} = -\frac{2}{7} \cdot 17
\]
Now, let's evaluate each option and see which one is equivalent to \(-\frac{34}{7}\):
a. \(-\frac{6}{7} \cdot 14\):
\[
-\frac{6 \cdot 14}{7} = -\frac{84}{7} = -12 \quad \text{(not equivalent)}
\]
b. \(-\frac{2}{7} \cdot -14\):
\[
-\frac{2 \cdot -14}{7} = \frac{28}{7} = 4 \quad \text{(not equivalent)}
\]
c. \(\frac{2}{7} \cdot 4\):
\[
\frac{2 \cdot 4}{7} = \frac{8}{7} \quad \text{(not equivalent)}
\]
d. \(6/7 \cdot 4\):
\[
\frac{6 \cdot 4}{7} = \frac{24}{7} \quad \text{(not equivalent)}
\]
None of the options given (\(a\), \(b\), \(c\), or \(d\)) are equivalent to \(-\frac{34}{7}\). However, let's check if there's an obvious algebraic relationship with the options:
If we look back at the question and the negative signs, option a can be rewritten with some manipulation:
\[
-\frac{6}{7} \cdot 14 = -\frac{84}{7} = -12
\]
This doesn't match.
None of the options equate to either a direct numerical match to \(-\frac{34}{7}\) or have a clear algebraic equivalence that fits. Therefore, based on these calculations and simplifications, there isn't a clear best choice.
In conclusion, there appears to be a misalignment between the expected values and the choices provided. If I had to choose one option purely based on form without perfect numerical equivalency, option b could sound reasonable, as it is formed using \(-\frac{2}{7}\) into another multiplication but does not match the negative fraction we derived.
Please verify if there are typo errors in expressions or if re-evaluating any given options against another parameter could yield a different expression.