To solve the expression \( 800 \times \frac{4}{5} \):

1. First, divide \( 800 \) by \( 5 \):

\[
800 \div 5 = 160
\]

2. Then, multiply the result by \( 4 \):

\[
160 \times 4 = 640
\]

So, \( 800 \times \frac{4}{5} = 640 \).

Would you like more details on any part of this solution?

Here are 5 related questions:

1. How do you simplify fractions before performing multiplication?
2. What is the result of \( 640 \div 8 \)?
3. Can you convert \( \frac{4}{5} \) to a decimal and then multiply by 800?
4. How would you calculate \( 800 \times \frac{3}{5} \)?
5. What is the value of \( 800 \times \frac{7}{10} \)?

**Tip:** Always perform division first when simplifying expressions involving both multiplication and fractions.

Learn how to solve the multiplication of 800 and the fraction 4/5 with a step-by-step calculation. This problem covers basic arithmetic concepts including multiplication and division of fractions. Suitable for students in Grades 5-6.

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