To convert 68°F to degrees Celsius using the formula \( C = \frac{5}{9} \times (F - 32) \):
- Substitute \( F = 68 \) into the formula:
\[ C = \frac{5}{9} \times (68 - 32) \]
- Calculate \( 68 - 32 \):
\[ 68 - 32 = 36 \]
- Now substitute that value back into the equation:
\[ C = \frac{5}{9} \times 36 \]
- Multiply \( \frac{5}{9} \) by \( 36 \):
\[ C = \frac{180}{9} = 20 \]
Therefore, \( 68°F \) is equal to \( 20°C \).