I see that you've uploaded a math worksheet with a few fractions and word problems. Let's go through each part step by step:

Question 3: Work out the following additions and subtractions. Give your answers as simplified fractions.

1. (a) $1 \frac{3}{5} + 2 \frac{1}{2} - \frac{7}{9}$
2. (b) $7 \frac{9}{10} + 1 \frac{1}{3} - \frac{1}{3}$
3. (c) $3 \frac{3}{5} - \frac{9}{7} + \frac{5}{8}$
4. (d) $\frac{5}{8} - 1 \frac{1}{4} - \frac{1}{8}$

Question 1: In a car park, $\frac{2}{5}$ of the cars are red, and $\frac{3}{5}$ of the cars are blue.

• What fraction of the cars are red or blue?
  • The sum of the fractions for red and blue cars is:
    $\frac{2}{5} + \frac{3}{5} = \frac{5}{5} = 1$, meaning all the cars are either red or blue.

Question 2: Harry spent parts of his pocket money.

• He spent $\frac{1}{5}$ of his pocket money on a ticket for a football match.
• He also spent $\frac{1}{8}$ of his pocket money on a scarf at the match.
  • (a) What fraction of his pocket money has Harry spent?
    • $\frac{1}{5} + \frac{1}{8}$
  • (b) What fraction of his pocket money does Harry have left?
    • $1 - \left( \frac{1}{5} + \frac{1}{8} \right)$

Question 1: Work out each of the following.

• (a) $\frac{1}{2}$ of 10 = 5
• (b) $\frac{3}{18}$ of 6 = 1
• (c) $\frac{1}{5}$ of 20 = 4
• (d) $\frac{1}{4}$ of 24 = 6

Would you like me to work through any of these steps in detail? Or would you like help with any specific problems? Let me know!