To convert the mixed number $20 \frac{11}{50}$ into a decimal:

1. First, separate the whole number and the fraction: $20 \frac{11}{50} = 20 + \frac{11}{50}$

2. Convert the fraction $\frac{11}{50}$ into a decimal by dividing 11 by 50: $\frac{11}{50} = 0.22$

3. Now, add the whole number to the decimal: $20 + 0.22 = 20.22$

So, $20 \frac{11}{50}$ as a decimal is $20.22$.

Would you like more details or have any questions about this process? Here are some related questions:

1. How do you convert other mixed numbers to decimals?
2. What are some methods to simplify fractions before converting to decimals?
3. How can you convert repeating decimals into fractions?
4. How do you convert decimals back into mixed numbers?
5. What are the differences between fractions, decimals, and percentages?

Tip: When converting fractions to decimals, divide the numerator by the denominator using long division or a calculator!