Final answer:
To solve the expression -125% + 28/20, first convert -125% to the decimal -1.25 and simplify the fraction 28/20 to 1.4. Adding these together gives the answer 0.15.
Step-by-step explanation:
To solve the given expression -125\% + \dfrac{28}{20}, we should convert the percentage to decimal and simplify the fraction:
- Convert -125\% to a decimal by dividing by 100: -1.25.
- Simplify the fraction \dfrac{28}{20} by dividing both the numerator (28) and the denominator (20) by their greatest common divisor, which is 4, resulting in \dfrac{7}{5} or 1.4 when converted to a decimal.
Now, add the decimal conversion of the percentage to the simplified fraction:
-1.25 + 1.4 = 0.15
Therefore, the answer to the expression is 0.15.