The expression given is:

$\frac{2}{10} + \left( \frac{4}{10} + \frac{1}{10} \right)$

Step 1: Simplify the terms inside the parentheses

$\frac{4}{10} + \frac{1}{10} = \frac{5}{10}$

Step 2: Add this result to $\frac{2}{10}$

$\frac{2}{10} + \frac{5}{10} = \frac{7}{10}$

Thus, the final simplified answer is:

$\frac{7}{10}$

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

Here are 5 related questions you might find useful:

1. How do you add fractions with different denominators?
2. What is the greatest common factor, and how do you use it to simplify fractions?
3. How do you multiply or divide fractions?
4. How do you convert fractions to decimals?
5. How do you convert improper fractions to mixed numbers?

Tip: When adding fractions with the same denominator, simply add the numerators and keep the denominator the same!