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To divide \(-21\) by \(-3\), you perform the division just as you would with positive numbers:

\[
\frac{-21}{-3} = 7
\]

When dividing two negative numbers, the result is positive. Therefore, the answer is:

\[
\frac{-21}{-3} = 7
\]

Would you like any further details or have any questions?

Here are five related questions for further practice:

1. What is the result of \(\frac{-50}{-5}\)?
2. How would you solve \(\frac{36}{-6}\)?
3. What is the quotient of \(\frac{-49}{7}\)?
4. How do you divide \(-64\) by \(-8\)?
5. What is the result of \(\frac{28}{-4}\)?

**Tip:** When dividing or multiplying two numbers with the same sign (both positive or both negative), the result is always positive. When they have different signs, the result is negative.

Learn how to divide -21 by -3 with a step-by-step solution. This problem demonstrates the division of negative numbers and explains why the result is positive. Suitable for students in Grades 6-8.

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