Let's break down the question and solve each part step-by-step.
### Part (a)
1. Expression 1: [tex]\( \frac{8}{5} \)[/tex]
- Simplifying this division, we get:
[tex]\[
\frac{8}{5} = 1.6
\][/tex]
2. Expression 2: [tex]\( \frac{18}{-4} \)[/tex]
- Simplifying this division, we get:
[tex]\[
\frac{18}{-4} = -4.5
\][/tex]
So, for part (a), the values are:
- [tex]\( \frac{8}{5} = 1.6 \)[/tex]
- [tex]\( \frac{18}{-4} = -4.5 \)[/tex]
### Part (b)
1. Sum 1: [tex]\( 6 + 4 \)[/tex]
- Adding these numbers, we get:
[tex]\[
6 + 4 = 10
\][/tex]
2. Sum 2: [tex]\( 4 + 2 \)[/tex]
- Adding these numbers, we get:
[tex]\[
4 + 2 = 6
\][/tex]
3. Sum 3: [tex]\( 8 + 4 \)[/tex]
- Adding these numbers, we get:
[tex]\[
8 + 4 = 12
\][/tex]
4. Sum 4: [tex]\( 4 + 4 + 2 + 1 + 2 \)[/tex]
- Adding these numbers sequentially, we get:
[tex]\[
4 + 4 = 8
\][/tex]
[tex]\[
8 + 2 = 10
\][/tex]
[tex]\[
10 + 1 = 11
\][/tex]
[tex]\[
11 + 2 = 13
\][/tex]
So, for part (b), the sums are:
- [tex]\( 6 + 4 = 10 \)[/tex]
- [tex]\( 4 + 2 = 6 \)[/tex]
- [tex]\( 8 + 4 = 12 \)[/tex]
- [tex]\( 4 + 4 + 2 + 1 + 2 = 13 \)[/tex]
### Summary
After solving the given expressions and sums step-by-step, we have:
- Part (a):
- [tex]\( \frac{8}{5} = 1.6 \)[/tex]
- [tex]\( \frac{18}{-4} = -4.5 \)[/tex]
- Part (b):
- [tex]\( 6 + 4 = 10 \)[/tex]
- [tex]\( 4 + 2 = 6 \)[/tex]
- [tex]\( 8 + 4 = 12 \)[/tex]
- [tex]\( 4 + 4 + 2 + 1 + 2 = 13 \)[/tex]
These calculations conclude the solution!
