Rational numbers   »      

When you start the website, a problem was created that links three rational numbers with different arithmetic operations.

Your task now is to determine the result in two steps. Pay attention to the signs and 'PEMDAS'Help me

Example:
 Example

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Can you top 355 points?

Calculate in ℚ -2a-Help me
Basic arithmetic operations

 Determine the result in two steps.
= =
        

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