To convert from Fahrenheit to Celsius, you can use the formula:
\[ C = \frac{5}{9} (F - 32) \]
Where:
- \( C \) is the temperature in degrees Celsius,
- \( F \) is the temperature in degrees Fahrenheit.
For 149°F, we plug in the value into the formula:
\[ C = \frac{5}{9} (149 - 32) \]
\[ C = \frac{5}{9} (117) \]
\[ C \approx \frac{5 \times 117}{9} \]
\[ C \approx \frac{585}{9} \]
\[ C \approx 65°C \]
Therefore, the equivalent temperature in Celsius of 149°F is 65°C.