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:
- \( 2.5 + (-0.6) = 1.9 \)
So, the two numbers are \( \frac{5}{2} \) (or 2.5) and \( -0.6 \).