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The image contains two mathematical problems involving fractions:

### Problem 6:
\[
5 \times \frac{9}{10} + \left( -8 \times \frac{2}{5} \right)
\]

### Problem 9:
\[
-9 \times \frac{7}{10} - \left( 4 \times \frac{3}{5} \right)
\]

Let's solve each step by step.

### Solution to Problem 6:
1. Calculate \( 5 \times \frac{9}{10} \):
   \[
   5 \times \frac{9}{10} = \frac{45}{10} = 4.5
   \]
2. Calculate \( -8 \times \frac{2}{5} \):
   \[
   -8 \times \frac{2}{5} = \frac{-16}{5} = -3.2
   \]
3. Add the two results:
   \[
   4.5 + (-3.2) = 4.5 - 3.2 = 1.3
   \]

**Answer to Problem 6:**
\[
1.3
\]

---

### Solution to Problem 9:
1. Calculate \( -9 \times \frac{7}{10} \):
   \[
   -9 \times \frac{7}{10} = \frac{-63}{10} = -6.3
   \]
2. Calculate \( 4 \times \frac{3}{5} \):
   \[
   4 \times \frac{3}{5} = \frac{12}{5} = 2.4
   \]
3. Now, subtract the two results:
   \[
   -6.3 - 2.4 = -8.7
   \]

**Answer to Problem 9:**
\[
-8.7
\]

---

Would you like further explanations or details on any step?

### Here are 5 related questions to practice:
1. Simplify \( 3 \times \frac{7}{8} + 2 \times \frac{5}{6} \).
2. Solve \( -4 \times \frac{5}{9} - 3 \times \frac{2}{7} \).
3. What is the result of \( \frac{9}{4} + \left( -\frac{7}{3} \right) \)?
4. Find the value of \( 6 \times \frac{5}{8} + (-2 \times \frac{1}{4}) \).
5. Simplify \( \frac{12}{5} - \left( -\frac{8}{3} \right) \).

### Tip:
When multiplying fractions with whole numbers, convert the whole number to a fraction by putting it over 1 (e.g., \(5 = \frac{5}{1}\)) before multiplying the numerators and denominators.

Solve the following problems involving fractions: 5 * (9/10) + (-8 * 2/5) and -9 * (7/10) - (4 * 3/5).

This guide helps solve problems involving multiplication of whole numbers with fractions and adding/subtracting fractions. Example problems include 5 * (9/10) + (-8 * 2/5) and -9 * (7/10) - (4 * 3/5). Learn step-by-step how to calculate these values.

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