(0.75ast 40)/(0.4ast 0.60)(6-0.4ast 2-4)-(4)/(0.4)

To solve the expression, we need to follow the order of operations (PEMDAS/BODMAS). Let's break it down step by step:Given expression: 1. **Calculate the numerator and denominator of the first fraction:** 2. **Divide the results:** 3. **Simplify the expression inside the parentheses:** 4. **Multiply the result by the fraction:** 5. **Calculate the second fraction:** 6. **Subtract the second fraction from the first result:** So, the final answer is: