Question

Derek says that the quotient of -2/7 divided by -2/21 is -1/3. Part A: What is the correct quotient? Part B: What mistake did Derek likely make?

Answer 1

Answer:

The correct quotient is 3.

I think Derek has mistaken to divide $-\frac{2}{21}$ by $\frac{2}{7}$.

Step-by-step explanation:

We have to check the quotient of $(-\frac{2}{7}) \textrm{ divided by }(-\frac{2}{21})$.

Part A:

Now, $(-\frac{2}{7}) \textrm{ divided by }(-\frac{2}{21})$.

= $\frac{-\frac{2}{7} }{-\frac{2}{21} } =3$

So, the correct quotient is 3.

Part B:

Derek says that the quotient is $-\frac{1}{3}$.  

So, I think Derek has mistaken to divide $-\frac{2}{21}$ by $\frac{2}{7}$. (Answer)