Question

Choose 2 numbers whose sum is 1.9
-0.2
5/2
-0.4
2/1
-0.5
2 1/10
-0.3
-0.1
23/10
2 2/5
11/5
-0.6

Answer 1

To find two numbers from the list that sum to 1.9, we can first convert the fractions and mixed numbers to decimal form for easier calculation.

Here are the conversions:

- **\( -0.2 \)** = -0.2
- **\( \frac{5}{2} \)** = 2.5
- **\( -0.4 \)** = -0.4
- **\( \frac{2}{1} \)** = 2.0
- **\( -0.5 \)** = -0.5
- **\( 2 \frac{1}{10} \)** = 2.1
- **\( -0.3 \)** = -0.3
- **\( -0.1 \)** = -0.1
- **\( \frac{23}{10} \)** = 2.3
- **\( 2 \frac{2}{5} \)** = 2.4
- **\( \frac{11}{5} \)** = 2.2
- **\( -0.6 \)** = -0.6

Now, let's look for pairs that sum up to 1.9:

Checking pairs systematically:

1. **\( 2.5 + (-0.6) = 1.9 \)**

So, the two numbers are **\( \frac{5}{2} \) (or 2.5)** and **\( -0.6 \)**.