20,8÷(12-11,36)-8÷12,5=

To solve the expression \(20.8 \div (12 - 11.36) - 8 \div 12.5\), we will break it down step by step.

1. Calculate \(12 - 11.36\): \[ 12 - 11.36 = 0.64 \]

2. Substitute back into the expression: \[ 20.8 \div 0.64 - 8 \div 12.5 \]

3. Calculate \(20.8 \div 0.64\): \[ 20.8 \div 0.64 = 32.5 \]

4. Calculate \(8 \div 12.5\): \[ 8 \div 12.5 = \frac{8}{12.5} = 0.64 \]

5. Substitute back into the expression: \[ 32.5 - 0.64 \]

6. Calculate \(32.5 - 0.64\): \[ 32.5 - 0.64 = 31.86 \]

Thus, the final result is: \[ \boxed{31.86} \]