Answers

The simplest form of -80/405 is -16/81.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 80 and 405 is 5
2. Divide both the numerator and denominator by the GCD
   -80 ÷ 5/405 ÷ 5
3. Reduced fraction: -16/81
   Therefore, -80/405 simplified to lowest terms is -16/81.

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