-4f to c

Step 1: Identify the conversion factor

The conversion factor from fahrenheit to celsius is:

1 fahrenheit = 5 celsius

Step 2: Set up the calculation

To convert -4 fahrenheit to celsius, multiply -4 by the conversion factor 5:

-4×5

Step 3: Calculate

-4×5=-20

Step 4: Round the result

The result is approximately: -20 celsius

Final Answer:

-4 fahrenheit is approximately -20 celsius.