Let's convert the fraction $\frac{9}{20}$ into a decimal.

To do this, divide 9 by 20:

$\frac{9}{20} = 0.45$

Since there is no repeating decimal and the result terminates, the correct answer is:

C. The decimal is terminating and is 0.45.

Would you like more details on repeating and terminating decimals? Or have any other questions?

Follow-up questions:

1. What is the difference between a terminating and a repeating decimal?
2. How can you convert a repeating decimal back into a fraction?
3. What happens when you divide a number by 9 in terms of repeating decimals?
4. What is the decimal equivalent of $\frac{7}{8}$?
5. How do you determine if a fraction will result in a repeating decimal or a terminating one?

Tip:

To quickly determine whether a fraction will have a terminating decimal, check if the denominator (when simplified) is only divisible by 2 and 5. If it’s divisible by other factors, it will result in a repeating decimal.