Final answer:
To convert 158°F to Celsius, subtract 32 from 158 and multiply the result by 5/9. The temperature in Celsius is approximately 70°C.
Step-by-step explanation:
To convert the temperature given in the Fahrenheit scale to the Celsius scale, 
you can use the formula: °C = (°F - 32) × 5/9. 
Let's apply this formula to the given temperature of 158°F. 
First, subtract 32 from 158, which gives you 126. 
Then, multiply 126 by 5/9 to get the temperature in Celsius. 
The result is approximately 70°C.
Learn more about Temperature conversion