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Let's go over the problems visible in the image you uploaded and help with the solutions step by step:

1. **Problem 3**: Write numbers as fractions with denominator 2.
   - a) \( 5 = \frac{10}{2} \)
   - b) \( 12 = \frac{24}{2} \)
   - c) \( -4 = \frac{-8}{2} \)
   - d) \( -1001 = \frac{-2002}{2} \)
   - e) \( \frac{12}{24} = \frac{1}{2} \) (Simplified)
   - f) \( \frac{50}{100} = \frac{1}{2} \) (Simplified)

2. **Problem 4**: Draw a number line and mark the points for 3, -2, 1.5, and -3.5. Also, write the opposite values for these numbers:
   - Opposite of 3 is \( -3 \)
   - Opposite of \( -2 \) is \( 2 \)
   - Opposite of \( 1.5 \) is \( -1.5 \)
   - Opposite of \( -3.5 \) is \( 3.5 \)

3. **Problem 5**: Write the coordinates of the points marked on the number line.
   - Point J: \( 0.1 \)
   - Point K: \( 0.4 \)
   - Point L: \( 1 \)
   - Point M: \( 1.6 \)
   - Point N: \( 2 \)

4. **Problem 6**: Convert fractions into decimal numbers:
   - a) \( \frac{1}{2} = 0.5 \)
   - b) \( \frac{8}{5} = 1.6 \)
   - c) \( \frac{7}{20} = 0.35 \)
   - d) \( \frac{-12}{50} = -0.24 \)
   - e) \( \frac{8}{16} = 0.5 \)

5. **Problem 7**: Convert mixed numbers into decimal numbers:
   - a) \( 5 \frac{1}{2} = 5.5 \)
   - b) \( 3 \frac{3}{5} = 3.6 \)
   - c) \( 3 \frac{3}{4} = 3.75 \)
   - d) \( -15 \frac{6}{25} = -15.24 \)

Would you like more details or have any specific questions on these problems?

### Five follow-up questions:
1. Can you simplify \( \frac{12}{24} \) in another way besides dividing by 12?
2. How would you graphically represent a mixed number like \( 5 \frac{1}{2} \) on a number line?
3. What are some ways to verify that \( \frac{7}{20} = 0.35 \)?
4. How can you convert negative mixed numbers, such as \( -15 \frac{6}{25} \), back to fractions?
5. What method do you use to find the opposite of a decimal number like \( -3.5 \)?

### Tip:
When converting fractions to decimals, always simplify the fraction first to make division easier.

Mathematical problems involving fractions, number lines, and decimal conversions from the image.

This page helps solve fraction and decimal conversion problems using number lines. Concepts include simplifying fractions, converting mixed numbers, and understanding the opposite of numbers. Suitable for students in Grades 5-7.

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